removed inline boolean checks for methods

Author: trueadm

src/isomorphic/classic/element/ReactElementValidator.js

@@ -124,7 +124,7 @@ function validateExplicitKey(element, parentType) {
     '%s%s See https://fb.me/react-warning-keys for more information.%s',
     currentComponentErrorInfo,
     childOwner,
-    getCurrentStackAddendum && getCurrentStackAddendum(element)
+    getCurrentStackAddendum(element)
   );
 }
 
@@ -227,7 +227,7 @@ var ReactElementValidator = {
         info += getDeclarationErrorAddendum();
       }
 
-      info += getCurrentStackAddendum && getCurrentStackAddendum();
+      info += getCurrentStackAddendum();
 
       warning(
         false,

src/renderers/dom/shared/hooks/ReactDOMInvalidARIAHook.js

@@ -28,7 +28,7 @@ if (__DEV__) {
 function getStackAddendum(debugID) {
   if (debugID != null) {
     // This can only happen on Stack
-    return getStackAddendumByID && getStackAddendumByID(debugID);
+    return getStackAddendumByID(debugID);
   } else {
     // This can only happen on Fiber
     return ReactDebugCurrentFiber.getCurrentFiberStackAddendum();

src/renderers/dom/shared/hooks/ReactDOMNullInputValuePropHook.js

@@ -25,7 +25,7 @@ var didWarnValueNull = false;
 function getStackAddendum(debugID) {
   if (debugID != null) {
     // This can only happen on Stack
-    return getStackAddendumByID && getStackAddendumByID(debugID);
+    return getStackAddendumByID(debugID);
   } else {
     // This can only happen on Fiber
     return ReactDebugCurrentFiber.getCurrentFiberStackAddendum();