Remove experimental fast-codegen. We are no longer working on this

src/SConscript

 # Copyright 2008 the V8 project authors. All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 #       copyright notice, this list of conditions and the following
 #       disclaimer in the documentation and/or other materials provided
@@ skipping 100 matching lines @@
     v8-counters.cc
     v8.cc
     v8threads.cc
     variables.cc
     version.cc
     virtual-frame.cc
     vm-state.cc
     zone.cc
     """),
   'arch:arm': Split("""
-    fast-codegen.cc
     jump-target-light.cc
     virtual-frame-light.cc
     arm/builtins-arm.cc
     arm/codegen-arm.cc
     arm/constants-arm.cc
     arm/cpu-arm.cc
     arm/debug-arm.cc
     arm/disasm-arm.cc
-    arm/fast-codegen-arm.cc
     arm/frames-arm.cc
     arm/full-codegen-arm.cc
     arm/ic-arm.cc
     arm/jump-target-arm.cc
     arm/macro-assembler-arm.cc
     arm/regexp-macro-assembler-arm.cc
     arm/register-allocator-arm.cc
     arm/stub-cache-arm.cc
     arm/virtual-frame-arm.cc
     arm/assembler-arm.cc
     """),
   'arch:mips': Split("""
-    fast-codegen.cc
     mips/assembler-mips.cc
     mips/builtins-mips.cc
     mips/codegen-mips.cc
     mips/constants-mips.cc
     mips/cpu-mips.cc
     mips/debug-mips.cc
     mips/disasm-mips.cc
-    mips/fast-codegen-mips.cc
     mips/full-codegen-mips.cc
     mips/frames-mips.cc
     mips/ic-mips.cc
     mips/jump-target-mips.cc
     mips/macro-assembler-mips.cc
     mips/register-allocator-mips.cc
     mips/stub-cache-mips.cc
     mips/virtual-frame-mips.cc
     """),
   'arch:ia32': Split("""
     jump-target-heavy.cc
     virtual-frame-heavy.cc
     ia32/assembler-ia32.cc
     ia32/builtins-ia32.cc
     ia32/codegen-ia32.cc
     ia32/cpu-ia32.cc
     ia32/debug-ia32.cc
     ia32/disasm-ia32.cc
-    ia32/fast-codegen-ia32.cc
     ia32/frames-ia32.cc
     ia32/full-codegen-ia32.cc
     ia32/ic-ia32.cc
     ia32/jump-target-ia32.cc
     ia32/macro-assembler-ia32.cc
     ia32/regexp-macro-assembler-ia32.cc
     ia32/register-allocator-ia32.cc
     ia32/stub-cache-ia32.cc
     ia32/virtual-frame-ia32.cc
     """),
   'arch:x64': Split("""
-    fast-codegen.cc
     jump-target-heavy.cc
     virtual-frame-heavy.cc
     x64/assembler-x64.cc
     x64/builtins-x64.cc
     x64/codegen-x64.cc
     x64/cpu-x64.cc
     x64/debug-x64.cc
     x64/disasm-x64.cc
-    x64/fast-codegen-x64.cc
     x64/frames-x64.cc
     x64/full-codegen-x64.cc
     x64/ic-x64.cc
     x64/jump-target-x64.cc
     x64/macro-assembler-x64.cc
     x64/regexp-macro-assembler-x64.cc
     x64/register-allocator-x64.cc
     x64/stub-cache-x64.cc
     x64/virtual-frame-x64.cc
     """),
@@ skipping 120 matching lines @@
       snapshot_cc = 'snapshot.cc'
     snapshot_obj = context.ConfigureObject(env, snapshot_cc, CPPPATH=['.'])
   else:
     snapshot_obj = empty_snapshot_obj
   library_objs = [non_snapshot_files, libraries_obj, snapshot_obj]
   return (library_objs, d8_objs, [mksnapshot])
 
 
 (library_objs, d8_objs, mksnapshot) = ConfigureObjectFiles()
 Return('library_objs d8_objs mksnapshot')