Remove dart:platform library.

runtime/vm/vm.gypi

Index: runtime/vm/vm.gypi
diff --git a/runtime/vm/vm.gypi b/runtime/vm/vm.gypi
index d8ff0b47d018823689ba3a1fa7ab698f5d75f18b..b55ac29b98d4652420926677c5590b7fe1a71cbe 100644
--- a/runtime/vm/vm.gypi
+++ b/runtime/vm/vm.gypi
@@ -23,8 +23,6 @@
     'mirrors_patch_cc_file': '<(gen_source_dir)/mirrors_patch_gen.cc',
     'isolate_cc_file': '<(gen_source_dir)/isolate_gen.cc',
     'isolate_patch_cc_file': '<(gen_source_dir)/isolate_patch_gen.cc',
-    'platform_cc_file': '<(gen_source_dir)/platform_gen.cc',
-    'platform_patch_cc_file': '<(gen_source_dir)/platform_patch_gen.cc',
     'typed_data_cc_file': '<(gen_source_dir)/typed_data_gen.cc',
     'typed_data_patch_cc_file': '<(gen_source_dir)/typed_data_patch_gen.cc',
     'utf_cc_file': '<(gen_source_dir)/utf_gen.cc',
@@ -111,8 +109,6 @@
         'generate_isolate_patch_cc_file#host',
         'generate_mirrors_cc_file#host',
         'generate_mirrors_patch_cc_file#host',
-        'generate_platform_cc_file#host',
-        'generate_platform_patch_cc_file#host',
         'generate_typed_data_cc_file#host',
         'generate_typed_data_patch_cc_file#host',
         'generate_utf_cc_file#host',
@@ -124,7 +120,6 @@
         '../lib/isolate_sources.gypi',
         '../lib/math_sources.gypi',
         '../lib/mirrors_sources.gypi',
-        '../lib/platform_sources.gypi',
         '../lib/typed_data_sources.gypi',
       ],
       'sources': [
@@ -146,8 +141,6 @@
         '<(isolate_patch_cc_file)',
         '<(mirrors_cc_file)',
         '<(mirrors_patch_cc_file)',
-        '<(platform_cc_file)',
-        '<(platform_patch_cc_file)',
         '<(typed_data_cc_file)',
         '<(typed_data_patch_cc_file)',
         '<(utf_cc_file)',
@@ -167,7 +160,6 @@
         '../lib/isolate_sources.gypi',
         '../lib/math_sources.gypi',
         '../lib/mirrors_sources.gypi',
-        '../lib/platform_sources.gypi',
         '../lib/typed_data_sources.gypi',
       ],
       'sources': [
@@ -817,85 +809,6 @@
       ]
     },
     {
-      'target_name': 'generate_platform_cc_file',
-      'type': 'none',
-      'toolsets':['host'],
-      'includes': [
-        '../../sdk/lib/platform/platform_sources.gypi',
-      ],
-      'sources/': [
-        # Exclude all .[cc|h] files.
-        # This is only here for reference. Excludes happen after
-        # variable expansion, so the script has to do its own
-        # exclude processing of the sources being passed.
-        ['exclude', '\\.cc|h$'],
-      ],
-      'actions': [
-        {
-          'action_name': 'generate_platform_cc',
-          'inputs': [
-            '../tools/gen_library_src_paths.py',
-            '<(libgen_in_cc_file)',
-            '<@(_sources)',
-          ],
-          'outputs': [
-            '<(platform_cc_file)',
-          ],
-          'action': [
-            'python',
-            'tools/gen_library_src_paths.py',
-            '--output', '<(platform_cc_file)',
-            '--input_cc', '<(libgen_in_cc_file)',
-            '--include', 'vm/bootstrap.h',
-            '--var_name', 'dart::Bootstrap::platform_source_paths_',
-            '--library_name', 'dart:platform',
-            '<@(_sources)',
-          ],
-          'message': 'Generating ''<(platform_cc_file)'' file.'
-        },
-      ]
-    },
-    {
-      'target_name': 'generate_platform_patch_cc_file',
-      'type': 'none',
-      'toolsets':['host'],
-      'includes': [
-        # Load the runtime implementation sources.
-        '../lib/platform_sources.gypi',
-      ],
-      'sources/': [
-        # Exclude all .[cc|h] files.
-        # This is only here for reference. Excludes happen after
-        # variable expansion, so the script has to do its own
-        # exclude processing of the sources being passed.
-        ['exclude', '\\.cc|h$'],
-      ],
-      'actions': [
-        {
-          'action_name': 'generate_platform_patch_cc',
-          'inputs': [
-            '../tools/gen_library_src_paths.py',
-            '<(libgen_in_cc_file)',
-            '<@(_sources)',
-          ],
-          'outputs': [
-            '<(platform_patch_cc_file)',
-          ],
-          'action': [
-            'python',
-            'tools/gen_library_src_paths.py',
-            '--output', '<(platform_patch_cc_file)',
-            '--input_cc', '<(libgen_in_cc_file)',
-            '--include', 'vm/bootstrap.h',
-            '--var_name', 'dart::Bootstrap::platform_patch_paths_',
-            '--library_name', 'dart:platform',
-            '<@(_sources)',
-          ],
-          'message': 'Generating ''<(platform_patch_cc_file)'' file.'
-        },
-      ]
-    },
-    {
       'target_name': 'generate_typed_data_cc_file',
       'type': 'none',
       'toolsets':['host'],