remove ashmem from skia

gyp/utils.gyp

 # Gyp for utils.
 {
   'targets': [
     {
       'target_name': 'utils',
       'product_name': 'skia_utils',
       'type': 'static_library',
       'standalone_static_library': 1,
       'dependencies': [
         'core.gyp:*',
@@ skipping 92 matching lines @@
           ],
         }],
         [ 'skia_os == "nacl"', {
           'sources': [
             '../src/utils/SkThreadUtils_pthread_other.cpp',
           ],
           'sources!': [
             '../src/utils/SkThreadUtils_pthread_linux.cpp',
           ],
         }],
-        [ 'skia_os == "android"', {
-          'sources': [
-            '../src/utils/android/ashmem.cpp',
-          ],
-        }],
         ['skia_run_pdfviewer_in_gm', {
           'defines': [
             'SK_BUILD_NATIVE_PDF_RENDERER',
           ],
         }],
       ],
       'direct_dependent_settings': {
         'include_dirs': [
           '../include/utils',
           '../src/utils',
         ],
       },
     },
   ],
 }