lib: consolidate redundant require() calls

lib/_http_outgoing.js

@@ -25,12 +25,11 @@ const assert = require('assert').ok;
 const Stream = require('stream');
 const util = require('util');
 const internalUtil = require('internal/util');
-const internalHttp = require('internal/http');
+const { outHeadersKey, utcDate } = require('internal/http');
 const { Buffer } = require('buffer');
 const common = require('_http_common');
 const checkIsHttpToken = common._checkIsHttpToken;
 const checkInvalidHeaderChar = common._checkInvalidHeaderChar;
-const { outHeadersKey } = require('internal/http');
 const {
   defaultTriggerAsyncIdScope,
   symbols: { async_id_symbol }
@@ -48,7 +47,6 @@ const {
 } = require('internal/errors').codes;
 
 const { CRLF, debug } = common;
-const { utcDate } = internalHttp;
 
 const kIsCorked = Symbol('isCorked');
 

lib/internal/crypto/random.js

@@ -1,7 +1,7 @@
 'use strict';
 
 const { AsyncWrap, Providers } = process.binding('async_wrap');
-const { Buffer } = require('buffer');
+const { Buffer, kMaxLength } = require('buffer');
 const { randomBytes: _randomBytes } = process.binding('crypto');
 const {
   ERR_INVALID_ARG_TYPE,
@@ -10,7 +10,6 @@ const {
 } = require('internal/errors').codes;
 const { isArrayBufferView } = require('internal/util/types');
 
-const { kMaxLength } = require('buffer');
 const kMaxUint32 = 2 ** 32 - 1;
 const kMaxPossibleLength = Math.min(kMaxLength, kMaxUint32);
 

lib/internal/http2/core.js

@@ -2,7 +2,8 @@
 
 /* eslint-disable no-use-before-define */
 
-require('internal/util').assertCrypto();
+const internalUtil = require('internal/util');
+internalUtil.assertCrypto();
 
 const { internalBinding } = require('internal/bootstrap/loaders');
 const { async_id_symbol } = require('internal/async_hooks').symbols;
@@ -71,7 +72,7 @@ const { utcDate } = require('internal/http');
 const {
   promisify,
   customInspectSymbol: kInspect
-} = require('internal/util');
+} = internalUtil;
 const { isArrayBufferView } = require('internal/util/types');
 const { defaultTriggerAsyncIdScope } = require('internal/async_hooks');
 const { _connectionListener: httpConnectionListener } = http;

lib/internal/modules/esm/translators.js

@@ -14,8 +14,9 @@ const fs = require('fs');
 const { _makeLong } = require('path');
 const { SafeMap } = require('internal/safe_globals');
 const { URL } = require('url');
-const debug = require('util').debuglog('esm');
-const readFileAsync = require('util').promisify(fs.readFile);
+const util = require('util');
+const debug = util.debuglog('esm');
+const readFileAsync = util.promisify(fs.readFile);
 const readFileSync = fs.readFileSync;
 const StringReplace = Function.call.bind(String.prototype.replace);
 const JsonParse = JSON.parse;