Remove some dead code.

src/SConscript

 # Copyright 2011 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 69 matching lines @@
     hashmap.cc
     heap-profiler.cc
     heap.cc
     hydrogen.cc
     hydrogen-instructions.cc
     ic.cc
     inspector.cc
     interpreter-irregexp.cc
     isolate.cc
     jsregexp.cc
-    jump-target.cc
     lithium-allocator.cc
     lithium.cc
     liveedit.cc
     liveobjectlist.cc
     log-utils.cc
     log.cc
     mark-compact.cc
     messages.cc
     objects.cc
     objects-printer.cc
     objects-visiting.cc
     parser.cc
     preparser.cc
     preparse-data.cc
     profile-generator.cc
     property.cc
     regexp-macro-assembler-irregexp.cc
     regexp-macro-assembler.cc
     regexp-stack.cc
-    register-allocator.cc
     rewriter.cc
     runtime.cc
     runtime-profiler.cc
     safepoint-table.cc
     scanner-base.cc
     scanner.cc
     scopeinfo.cc
     scopes.cc
     serialize.cc
     snapshot-common.cc
     spaces.cc
     string-search.cc
     string-stream.cc
     strtod.cc
     stub-cache.cc
     token.cc
     top.cc
     type-info.cc
     unicode.cc
     utils.cc
     v8-counters.cc
     v8.cc
     v8threads.cc
     variables.cc
     version.cc
-    virtual-frame.cc
     zone.cc
     extensions/gc-extension.cc
     extensions/externalize-string-extension.cc
     """),
   'arch:arm': Split("""
-    jump-target-light.cc
-    virtual-frame-light.cc
     arm/builtins-arm.cc
     arm/code-stubs-arm.cc
     arm/codegen-arm.cc
     arm/constants-arm.cc
     arm/cpu-arm.cc
     arm/debug-arm.cc
     arm/deoptimizer-arm.cc
     arm/disasm-arm.cc
     arm/frames-arm.cc
     arm/full-codegen-arm.cc
     arm/ic-arm.cc
-    arm/jump-target-arm.cc
     arm/lithium-arm.cc
     arm/lithium-codegen-arm.cc
     arm/lithium-gap-resolver-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("""
-    jump-target-light.cc
-    virtual-frame-light.cc
     mips/assembler-mips.cc
     mips/builtins-mips.cc
     mips/code-stubs-mips.cc
     mips/codegen-mips.cc
     mips/constants-mips.cc
     mips/cpu-mips.cc
     mips/debug-mips.cc
     mips/deoptimizer-mips.cc
     mips/disasm-mips.cc
     mips/frames-mips.cc
     mips/full-codegen-mips.cc
     mips/ic-mips.cc
-    mips/jump-target-mips.cc
     mips/macro-assembler-mips.cc
     mips/regexp-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/code-stubs-ia32.cc
     ia32/codegen-ia32.cc
     ia32/cpu-ia32.cc
     ia32/debug-ia32.cc
     ia32/deoptimizer-ia32.cc
     ia32/disasm-ia32.cc
     ia32/frames-ia32.cc
     ia32/full-codegen-ia32.cc
     ia32/ic-ia32.cc
-    ia32/jump-target-ia32.cc
     ia32/lithium-codegen-ia32.cc
     ia32/lithium-gap-resolver-ia32.cc
     ia32/lithium-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("""
-    jump-target-heavy.cc
-    virtual-frame-heavy.cc
     x64/assembler-x64.cc
     x64/builtins-x64.cc
     x64/code-stubs-x64.cc
     x64/codegen-x64.cc
     x64/cpu-x64.cc
     x64/debug-x64.cc
     x64/deoptimizer-x64.cc
     x64/disasm-x64.cc
     x64/frames-x64.cc
     x64/full-codegen-x64.cc
     x64/ic-x64.cc
-    x64/jump-target-x64.cc
     x64/lithium-codegen-x64.cc
     x64/lithium-gap-resolver-x64.cc
     x64/lithium-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
     """),
   'simulator:arm': ['arm/simulator-arm.cc'],
   'simulator:mips': ['mips/simulator-mips.cc'],
   'os:freebsd': ['platform-freebsd.cc', 'platform-posix.cc'],
   'os:openbsd': ['platform-openbsd.cc', 'platform-posix.cc'],
   'os:linux':   ['platform-linux.cc', 'platform-posix.cc'],
   'os:android': ['platform-linux.cc', 'platform-posix.cc'],
   'os:macos':   ['platform-macos.cc', 'platform-posix.cc'],
   'os:solaris': ['platform-solaris.cc', 'platform-posix.cc'],
   'os:cygwin':  ['platform-cygwin.cc', 'platform-posix.cc'],
@@ skipping 126 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], preparser_objs)
 
 
 (library_objs, d8_objs, mksnapshot, preparser_objs) = ConfigureObjectFiles()
 Return('library_objs d8_objs mksnapshot preparser_objs')