Revert of Turn libbase into a component

src/d8.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 21 matching lines @@
     'v8_enable_vtunejit%': 0,
     'v8_enable_i18n_support%': 1,
   },
   'includes': ['../gypfiles/toolchain.gypi', '../gypfiles/features.gypi'],
   'targets': [
     {
       'target_name': 'd8',
       'type': 'executable',
       'dependencies': [
         'v8.gyp:v8',
-        'v8.gyp:v8_libbase',
         'v8.gyp:v8_libplatform',
       ],
       # Generated source files need this explicitly:
       'include_dirs+': [
         '..',
         '<(DEPTH)',
       ],
       'sources': [
         'd8.h',
         'd8.cc',
@@ skipping 97 matching lines @@
             '../gypfiles/isolate.gypi',
           ],
           'sources': [
             'd8.isolate',
           ],
         },
       ],
     }],
   ],
 }