[ic] Clean up handler boilerplate

src/v8.gyp

 # Copyright 2012 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 951 matching lines @@
         'heap/store-buffer.cc',
         'heap/store-buffer.h',
         'i18n.cc',
         'i18n.h',
         'icu_util.cc',
         'icu_util.h',
         'ic/access-compiler-data.h',
         'ic/access-compiler.cc',
         'ic/access-compiler.h',
         'ic/accessor-assembler.cc',
-        'ic/accessor-assembler-impl.h',
         'ic/accessor-assembler.h',
         'ic/call-optimization.cc',
         'ic/call-optimization.h',
         'ic/handler-compiler.cc',
         'ic/handler-compiler.h',
         'ic/handler-configuration-inl.h',
         'ic/handler-configuration.h',
         'ic/ic-inl.h',
         'ic/ic-state.cc',
         'ic/ic-state.h',
@@ skipping 1517 matching lines @@
       'conditions': [
         ['want_separate_host_toolset_mkpeephole==1', {
           'toolsets': ['host'],
         }, {
           'toolsets': ['target'],
         }],
       ],
     },
   ],
 }