Remove some obsolete flags.

src/flag-definitions.h

 // Copyright 2012 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.
 
 // This file defines all of the flags.  It is separated into different section,
 // for Debug, Release, Logging and Profiling, etc.  To add a new flag, find the
 // correct section, and use one of the DEFINE_ macros, without a trailing ';'.
 //
 // This include does not have a guard, because it is a template-style include,
 // which can be included multiple times in different modes.  It expects to have
@@ skipping 570 matching lines @@
 DEFINE_BOOL(expose_gc, false, "expose gc extension")
 DEFINE_STRING(expose_gc_as, NULL,
               "expose gc extension under the specified name")
 DEFINE_IMPLICATION(expose_gc_as, expose_gc)
 DEFINE_BOOL(expose_externalize_string, false,
             "expose externalize string extension")
 DEFINE_BOOL(expose_trigger_failure, false, "expose trigger-failure extension")
 DEFINE_INT(stack_trace_limit, 10, "number of stack frames to capture")
 DEFINE_BOOL(builtins_in_stack_traces, false,
             "show built-in functions in stack traces")
-DEFINE_BOOL(disable_native_files, false, "disable builtin natives files")
 
 // builtins.cc
 DEFINE_BOOL(allow_unsafe_function_constructor, false,
             "allow invoking the function constructor without security checks")
 
 // builtins-ia32.cc
 DEFINE_BOOL(inline_new, true, "use fast inline allocation")
 
 // codegen-ia32.cc / codegen-arm.cc
 DEFINE_BOOL(trace_codegen, false,
@@ skipping 265 matching lines @@
 // Regexp
 DEFINE_BOOL(regexp_optimization, true, "generate optimized regexp code")
 
 // Testing flags test/cctest/test-{flags,api,serialization}.cc
 DEFINE_BOOL(testing_bool_flag, true, "testing_bool_flag")
 DEFINE_MAYBE_BOOL(testing_maybe_bool_flag, "testing_maybe_bool_flag")
 DEFINE_INT(testing_int_flag, 13, "testing_int_flag")
 DEFINE_FLOAT(testing_float_flag, 2.5, "float-flag")
 DEFINE_STRING(testing_string_flag, "Hello, world!", "string-flag")
 DEFINE_INT(testing_prng_seed, 42, "Seed used for threading test randomness")
-#ifdef _WIN32
-DEFINE_STRING(testing_serialization_file, "C:\\Windows\\Temp\\serdes",
-              "file in which to testing_serialize heap")
-#else
-DEFINE_STRING(testing_serialization_file, "/tmp/serdes",
-              "file in which to serialize heap")
-#endif
 
 // mksnapshot.cc
 DEFINE_STRING(startup_src, NULL,
               "Write V8 startup as C++ src. (mksnapshot only)")
 DEFINE_STRING(startup_blob, NULL,
               "Write V8 startup blob file. (mksnapshot only)")
 
 // code-stubs-hydrogen.cc
 DEFINE_BOOL(profile_hydrogen_code_stub_compilation, false,
             "Print the time it takes to lazily compile hydrogen code stubs.")
@@ skipping 305 matching lines @@
 #undef DEFINE_ALIAS_FLOAT
 #undef DEFINE_ALIAS_ARGS
 
 #undef FLAG_MODE_DECLARE
 #undef FLAG_MODE_DEFINE
 #undef FLAG_MODE_DEFINE_DEFAULTS
 #undef FLAG_MODE_META
 #undef FLAG_MODE_DEFINE_IMPLICATIONS
 
 #undef COMMA