Implements wiring for Flight to have it's own "HostConfig" (#26590)

This reverts commit 9429ec9.

DiffTrain build for [cdf4588](cdf4588)

Author: kassens

compiled/facebook-www/REVISION

@@ -1 +1 @@
-1d3ffd9d9addb4aa0988b92ee6917c07c3c261ae
+cdf4588242e1dc0c9b29f7539d9ae97d216d03d4

compiled/facebook-www/ReactFlightDOMRelayServer-dev.classic.js

@@ -189,246 +189,6 @@ function getIteratorFn(maybeIterable) {
   return null;
 }
 
-// Re-export dynamic flags from the www version.
-require("ReactFeatureFlags");
-
-// A simple string attribute.
-// Attributes that aren't in the filter are presumed to have this type.
-var STRING = 1; // A string attribute that accepts booleans in React. In HTML, these are called
-// "enumerated" attributes with "true" and "false" as possible values.
-// When true, it should be set to a "true" string.
-// When false, it should be set to a "false" string.
-
-var BOOLEANISH_STRING = 2; // A real boolean attribute.
-// When true, it should be present (set either to an empty string or its name).
-// When false, it should be omitted.
-
-var BOOLEAN = 3; // An attribute that can be used as a flag as well as with a value.
-// When true, it should be present (set either to an empty string or its name).
-// When false, it should be omitted.
-// For any other value, should be present with that value.
-
-var OVERLOADED_BOOLEAN = 4; // An attribute that must be numeric or parse as a numeric.
-// When falsy, it should be removed.
-
-var NUMERIC = 5; // An attribute that must be positive numeric or parse as a positive numeric.
-
-function PropertyInfoRecord(
-  type,
-  attributeName,
-  attributeNamespace,
-  sanitizeURL,
-  removeEmptyString
-) {
-  this.acceptsBooleans =
-    type === BOOLEANISH_STRING ||
-    type === BOOLEAN ||
-    type === OVERLOADED_BOOLEAN;
-  this.attributeName = attributeName;
-  this.attributeNamespace = attributeNamespace;
-  this.type = type;
-  this.sanitizeURL = sanitizeURL;
-  this.removeEmptyString = removeEmptyString;
-} // When adding attributes to this list, be sure to also add them to
-// In React, we let users pass `true` and `false` even though technically
-// these aren't boolean attributes (they are coerced to strings).
-
-["contentEditable", "draggable", "spellCheck", "value"].forEach(function (
-  name
-) {
-  // $FlowFixMe[invalid-constructor] Flow no longer supports calling new on functions
-  new PropertyInfoRecord(
-    BOOLEANISH_STRING,
-    name.toLowerCase(), // attributeName
-    null, // attributeNamespace
-    false, // sanitizeURL
-    false
-  );
-}); // These are "enumerated" SVG attributes that accept "true" and "false".
-
-[
-  "allowFullScreen",
-  "async", // Note: there is a special case that prevents it from being written to the DOM
-  // on the client side because the browsers are inconsistent. Instead we call focus().
-  "autoFocus",
-  "autoPlay",
-  "controls",
-  "default",
-  "defer",
-  "disabled",
-  "disablePictureInPicture",
-  "disableRemotePlayback",
-  "formNoValidate",
-  "hidden",
-  "loop",
-  "noModule",
-  "noValidate",
-  "open",
-  "playsInline",
-  "readOnly",
-  "required",
-  "reversed",
-  "scoped",
-  "seamless", // Microdata
-  "itemScope"
-].forEach(function (name) {
-  // $FlowFixMe[invalid-constructor] Flow no longer supports calling new on functions
-  new PropertyInfoRecord(
-    BOOLEAN,
-    name.toLowerCase(), // attributeName
-    null, // attributeNamespace
-    false, // sanitizeURL
-    false
-  );
-}); // These are HTML attributes that are "overloaded booleans": they behave like
-
-["rowSpan", "start"].forEach(function (name) {
-  // $FlowFixMe[invalid-constructor] Flow no longer supports calling new on functions
-  new PropertyInfoRecord(
-    NUMERIC,
-    name.toLowerCase(), // attributeName
-    null, // attributeNamespace
-    false, // sanitizeURL
-    false
-  );
-});
-var CAMELIZE = /[\-\:]([a-z])/g;
-
-var capitalize = function (token) {
-  return token[1].toUpperCase();
-}; // This is a list of all SVG attributes that need special casing, namespacing,
-// or boolean value assignment. Regular attributes that just accept strings
-// and have the same names are omitted, just like in the HTML attribute filter.
-// Some of these attributes can be hard to find. This list was created by
-// scraping the MDN documentation.
-
-[
-  "accent-height",
-  "alignment-baseline",
-  "arabic-form",
-  "baseline-shift",
-  "cap-height",
-  "clip-path",
-  "clip-rule",
-  "color-interpolation",
-  "color-interpolation-filters",
-  "color-profile",
-  "color-rendering",
-  "dominant-baseline",
-  "enable-background",
-  "fill-opacity",
-  "fill-rule",
-  "flood-color",
-  "flood-opacity",
-  "font-family",
-  "font-size",
-  "font-size-adjust",
-  "font-stretch",
-  "font-style",
-  "font-variant",
-  "font-weight",
-  "glyph-name",
-  "glyph-orientation-horizontal",
-  "glyph-orientation-vertical",
-  "horiz-adv-x",
-  "horiz-origin-x",
-  "image-rendering",
-  "letter-spacing",
-  "lighting-color",
-  "marker-end",
-  "marker-mid",
-  "marker-start",
-  "overline-position",
-  "overline-thickness",
-  "paint-order",
-  "panose-1",
-  "pointer-events",
-  "rendering-intent",
-  "shape-rendering",
-  "stop-color",
-  "stop-opacity",
-  "strikethrough-position",
-  "strikethrough-thickness",
-  "stroke-dasharray",
-  "stroke-dashoffset",
-  "stroke-linecap",
-  "stroke-linejoin",
-  "stroke-miterlimit",
-  "stroke-opacity",
-  "stroke-width",
-  "text-anchor",
-  "text-decoration",
-  "text-rendering",
-  "transform-origin",
-  "underline-position",
-  "underline-thickness",
-  "unicode-bidi",
-  "unicode-range",
-  "units-per-em",
-  "v-alphabetic",
-  "v-hanging",
-  "v-ideographic",
-  "v-mathematical",
-  "vector-effect",
-  "vert-adv-y",
-  "vert-origin-x",
-  "vert-origin-y",
-  "word-spacing",
-  "writing-mode",
-  "xmlns:xlink",
-  "x-height" // NOTE: if you add a camelCased prop to this list,
-  // you'll need to set attributeName to name.toLowerCase()
-  // instead in the assignment below.
-].forEach(function (attributeName) {
-  attributeName.replace(CAMELIZE, capitalize); // $FlowFixMe[invalid-constructor] Flow no longer supports calling new on functions
-}); // String SVG attributes with the xlink namespace.
-
-[
-  "xlink:actuate",
-  "xlink:arcrole",
-  "xlink:role",
-  "xlink:show",
-  "xlink:title",
-  "xlink:type" // NOTE: if you add a camelCased prop to this list,
-  // you'll need to set attributeName to name.toLowerCase()
-  // instead in the assignment below.
-].forEach(function (attributeName) {
-  attributeName.replace(CAMELIZE, capitalize); // $FlowFixMe[invalid-constructor] Flow no longer supports calling new on functions
-}); // String SVG attributes with the xml namespace.
-
-[
-  "xml:base",
-  "xml:lang",
-  "xml:space" // NOTE: if you add a camelCased prop to this list,
-  // you'll need to set attributeName to name.toLowerCase()
-  // instead in the assignment below.
-].forEach(function (attributeName) {
-  attributeName.replace(CAMELIZE, capitalize); // $FlowFixMe[invalid-constructor] Flow no longer supports calling new on functions
-}); // These attribute exists both in HTML and SVG.
-// The attribute name is case-sensitive in SVG so we can't just use
-// the React name like we do for attributes that exist only in HTML.
-
-["tabIndex", "crossOrigin"].forEach(function (attributeName) {
-  // $FlowFixMe[invalid-constructor] Flow no longer supports calling new on functions
-  new PropertyInfoRecord(
-    STRING,
-    attributeName.toLowerCase(), // attributeName
-    null, // attributeNamespace
-    false, // sanitizeURL
-    false
-  );
-}); // These attributes accept URLs. These must not allow javascript: URLS.
-["src", "href", "action"].forEach(function (attributeName) {
-  // $FlowFixMe[invalid-constructor] Flow no longer supports calling new on functions
-  new PropertyInfoRecord(
-    STRING,
-    attributeName.toLowerCase(), // attributeName
-    null, // attributeNamespace
-    true, // sanitizeURL
-    true
-  );
-});
-
 var rendererSigil;
 
 {
@@ -637,6 +397,9 @@ function readContext$1(context) {
   return value;
 }
 
+// Re-export dynamic flags from the www version.
+require("ReactFeatureFlags");
+
 // Corresponds to ReactFiberWakeable and ReactFizzWakeable modules. Generally,
 // changes to one module should be reflected in the others.
 // TODO: Rename this module and the corresponding Fiber one to "Thenable"