[build][test] Remove configs for interpreted-regexp builder

Also removes some obsolete gn definitions.

Bug: v8:8678
Change-Id: I418051177f059ab413b996a641ecf23f70d6c8bc
Reviewed-on: https://chromium-review.googlesource.com/c/1433789
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59163}

BUILD.gn

@@ -98,10 +98,6 @@ declare_args() {
   v8_enable_pointer_compression = false
   v8_enable_31bit_smis_on_64bit_arch = false
 
-  # Interpreted regexp engine exists as platform-independent alternative
-  # based where the regular expression is compiled to a bytecode.
-  v8_interpreted_regexp = false
-
   # Sets -dOBJECT_PRINT.
   v8_enable_object_print = ""
 
@@ -371,9 +367,6 @@ config("features") {
   if (v8_enable_v8_checks) {
     defines += [ "V8_ENABLE_CHECKS" ]
   }
-  if (v8_interpreted_regexp || v8_enable_lite_mode) {
-    defines += [ "V8_INTERPRETED_REGEXP" ]
-  }
   if (v8_deprecation_warnings) {
     defines += [ "V8_DEPRECATION_WARNINGS" ]
   }

infra/mb/mb_config.pyl

@@ -106,7 +106,6 @@
       'V8 Linux64 - gcov coverage': 'release_x64_gcc_coverage',
       'V8 Linux - predictable': 'release_x86_predictable',
       'V8 Linux - full debug': 'full_debug_x86',
-      'V8 Linux - interpreted regexp': 'release_x86_interpreted_regexp',
       'V8 Random Deopt Fuzzer - debug': 'debug_x64',
     },
     'client.v8.clusterfuzz': {
@@ -538,8 +537,6 @@
       'release_bot', 'x86', 'gcmole'],
     'release_x86_gcmole_trybot': [
       'release_trybot', 'x86', 'gcmole'],
-    'release_x86_interpreted_regexp': [
-      'release_bot', 'x86', 'v8_interpreted_regexp'],
     'release_x86_minimal_symbols': [
       'release_bot', 'x86', 'minimal_symbols'],
     'release_x86_no_i18n_trybot': [
@@ -833,10 +830,6 @@
       'gn_args': 'v8_optimized_debug=false',
     },
 
-    'v8_interpreted_regexp': {
-      'gn_args': 'v8_interpreted_regexp=true',
-    },
-
     'v8_optimized_debug': {
       # This is the default in gn for debug.
     },

infra/testing/builders.pyl

@@ -674,16 +674,6 @@
       },
     ],
   },
-  'V8 Linux - interpreted regexp': {
-    'swarming_task_attrs': {
-      'expiration': 14400,
-      'hard_timeout': 3600,
-      'priority': 35,
-    },
-    'tests': [
-      {'name': 'v8testing'},
-    ],
-  },
   'V8 Linux - noi18n - debug': {
     'tests': [
       {'name': 'mozilla', 'variant': 'default'},

src/flag-definitions.h

@@ -1092,15 +1092,7 @@ DEFINE_UINT(serialization_chunk_size, 4096,
 // Regexp
 DEFINE_BOOL(regexp_optimization, true, "generate optimized regexp code")
 DEFINE_BOOL(regexp_mode_modifiers, false, "enable inline flags in regexp.")
-
-#ifdef V8_INTERPRETED_REGEXP
-#define V8_INTERPRETED_REGEXP_BOOL true
-#else
-#define V8_INTERPRETED_REGEXP_BOOL false
-#endif
-DEFINE_BOOL(regexp_interpret_all, V8_INTERPRETED_REGEXP_BOOL,
-            "interpret all regexp code")
-#undef V8_INTERPRETED_REGEXP_BOOL
+DEFINE_BOOL(regexp_interpret_all, false,  "interpret all regexp code")
 
 // Testing flags test/cctest/test-{flags,api,serialization}.cc
 DEFINE_BOOL(testing_bool_flag, true, "testing_bool_flag")