Remove old Chrome and Firefox fixes.

lodash.js

@@ -164,9 +164,6 @@
   /** Used to match `RegExp` flags from their coerced string values. */
   var reFlags = /\w*$/;
 
-  /** Used to detect hexadecimal string values. */
-  var reHasHexPrefix = /^0x/i;
-
   /** Used to detect bad signed hexadecimal string values. */
   var reIsBadHex = /^[-+]0x[0-9a-f]+$/i;
 
@@ -14071,15 +14068,12 @@
      * // => [6, 8, 10]
      */
     function parseInt(string, radix, guard) {
-      // Chrome fails to trim leading <BOM> whitespace characters.
-      // See https://bugs.chromium.org/p/v8/issues/detail?id=3109 for more details.
       if (guard || radix == null) {
         radix = 0;
       } else if (radix) {
         radix = +radix;
       }
-      string = toString(string).replace(reTrim, '');
-      return nativeParseInt(string, radix || (reHasHexPrefix.test(string) ? 16 : 10));
+      return nativeParseInt(toString(string), radix || 0);
     }
 
     /**

test/test.js

@@ -11135,12 +11135,6 @@
         skipAssert(assert);
       }
     });
-
-    QUnit.test('should avoid `[xpconnect wrapped native prototype]` in Firefox', function(assert) {
-      assert.expect(1);
-
-      assert.strictEqual(_.isNumber(+'2'), true);
-    });
   }(1, 2, 3));
 
   /*--------------------------------------------------------------------------*/
@@ -16986,7 +16980,7 @@
       assert.strictEqual(_.parseInt('08', 10), 8);
     });
 
-    QUnit.test('should parse strings with leading whitespace (test in Chrome and Firefox)', function(assert) {
+    QUnit.test('should parse strings with leading whitespace', function(assert) {
       assert.expect(2);
 
       var expected = [8, 8, 10, 10, 32, 32, 32, 32];
@@ -20633,14 +20627,8 @@
             ? 0
             : Math.min(length, MAX_ARRAY_INDEX);
 
-          // Avoid false fails in older Firefox.
-          if (array.length == length) {
-            assert.ok(steps == 32 || steps == 33);
-            assert.strictEqual(actual, expected);
-          }
-          else {
-            skipAssert(assert, 2);
-          }
+          assert.ok(steps == 32 || steps == 33);
+          assert.strictEqual(actual, expected);
         });
       });
     });