Remove /arch:SSE2 from Win 64 Release builds

gyp/common_conditions.gypi

 # conditions used in both common.gypi and skia.gyp in chromium
 #
 {
   'defines': [
     'SK_ALLOW_STATIC_GLOBAL_INITIALIZERS=<(skia_static_initializers)',
     'SK_SUPPORT_GPU=<(skia_gpu)',
     'SK_SUPPORT_OPENCL=<(skia_opencl)',
     'SK_FORCE_DISTANCE_FIELD_TEXT=<(skia_force_distance_field_text)',
   ],
   'conditions' : [
@@ skipping 120 matching lines @@
                 'inherit_from': ['Debug'],
                 'msvs_settings': {
                   'VCCLCompilerTool': {
                      # /ZI is not supported on 64bit
                     'DebugInformationFormat': '3', # programDatabase (/Zi)
                   },
                 },
               },
               'Release_x64': {
                 'inherit_from': ['Release'],
+                'msvs_settings': {
+                  'VCCLCompilerTool': {
+                     # Don't specify /arch. SSE2 is implied by 64bit and specifying it warns.
+                    'EnableEnhancedInstructionSet': '0', #
+                  },
+                },
               },
               'Release_Developer_x64': {
                 'inherit_from': ['Release_Developer'],
+                'msvs_settings': {
+                  'VCCLCompilerTool': {
+                     # Don't specify /arch. SSE2 is implied by 64bit and specifying it warns.
+                    'EnableEnhancedInstructionSet': '0', #
+                  },
+                },
               },
             },
           }],
           [ 'skia_arch_width == 64', {
             'msvs_configuration_platform': 'x64',
           }],
           [ 'skia_arch_width == 32', {
             'msvs_configuration_platform': 'Win32',
           }],
           [ 'skia_warnings_as_errors', {
@@ skipping 483 matching lines @@
     [ 'skia_is_bot', {
       'defines': [ 'SK_CRASH_HANDLER' ],
     }],
 
   ], # end 'conditions'
   # The Xcode SYMROOT must be at the root. See build/common.gypi in chromium for more details
   'xcode_settings': {
     'SYMROOT': '<(DEPTH)/xcodebuild',
   },
 }