Revert of [regexp] Named capture support for string replacements

test/mjsunit/harmony/regexp-named-captures.js

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Flags: --harmony-regexp-named-captures
 
 // Malformed named captures.
 assertThrows("/(?<>a)/u");  // Empty name.
 assertThrows("/(?<aa)/u");  // Unterminated name.
 assertThrows("/(?<42a>a)/u");  // Name starting with digits.
@@ skipping 190 matching lines @@
     assertEquals("a", groups.fst);
     assertEquals("b", groups.snd);
     assertEquals("a", fst);
     assertEquals("b", snd);
     assertEquals(0, offset);
     assertEquals("abcd", str);
     return `${groups.snd}${groups.fst}`;
   });
   assertEquals("bacd", result);
 }
-
-// @@replace with a string replacement argument (no named captures).
-{
-  let re = /(.)(.)/u;
-  assertEquals("$<snd>$<fst>cd", "abcd".replace(re, "$<snd>$<fst>"));
-  assertEquals("bacd", "abcd".replace(re, "$2$1"));
-  assertEquals("$<sndcd", "abcd".replace(re, "$<snd"));
-  assertEquals("$<42a>cd", "abcd".replace(re, "$<42$1>"));
-  assertEquals("$<thd>cd", "abcd".replace(re, "$<thd>"));
-  assertEquals("$<a>cd", "abcd".replace(re, "$<$1>"));
-}
-
-// @@replace with a string replacement argument (global, named captures).
-{
-  let re = /(?<fst>.)(?<snd>.)/gu;
-  assertEquals("badc", "abcd".replace(re, "$<snd>$<fst>"));
-  assertEquals("badc", "abcd".replace(re, "$2$1"));
-  assertThrows(() => "abcd".replace(re, "$<snd"), SyntaxError);
-  assertEquals("", "abcd".replace(re, "$<42$1>"));
-  assertEquals("", "abcd".replace(re, "$<thd>"));
-  assertEquals("", "abcd".replace(re, "$<$1>"));
-}
-
-// @@replace with a string replacement argument (non-global, named captures).
-{
-  let re = /(?<fst>.)(?<snd>.)/u;
-  assertEquals("bacd", "abcd".replace(re, "$<snd>$<fst>"));
-  assertEquals("bacd", "abcd".replace(re, "$2$1"));
-  assertThrows(() => "abcd".replace(re, "$<snd"), SyntaxError);
-  assertEquals("cd", "abcd".replace(re, "$<42$1>"));
-  assertEquals("cd", "abcd".replace(re, "$<thd>"));
-  assertEquals("cd", "abcd".replace(re, "$<$1>"));
-}
-
-// @@replace with a string replacement argument (slow, global, named captures).
-{
-  let re = toSlowMode(/(?<fst>.)(?<snd>.)/gu);
-  assertEquals("badc", "abcd".replace(re, "$<snd>$<fst>"));
-  assertEquals("badc", "abcd".replace(re, "$2$1"));
-  assertThrows(() => "abcd".replace(re, "$<snd"), SyntaxError);
-  assertEquals("", "abcd".replace(re, "$<42$1>"));
-  assertEquals("", "abcd".replace(re, "$<thd>"));
-  assertEquals("", "abcd".replace(re, "$<$1>"));
-}
-
-// @@replace with a string replacement argument (slow, non-global,
-// named captures).
-{
-  let re = toSlowMode(/(?<fst>.)(?<snd>.)/u);
-  assertEquals("bacd", "abcd".replace(re, "$<snd>$<fst>"));
-  assertEquals("bacd", "abcd".replace(re, "$2$1"));
-  assertThrows(() => "abcd".replace(re, "$<snd"), SyntaxError);
-  assertEquals("cd", "abcd".replace(re, "$<42$1>"));
-  assertEquals("cd", "abcd".replace(re, "$<thd>"));
-  assertEquals("cd", "abcd".replace(re, "$<$1>"));
-}