Revert of mojo: Convert gles2 to the new thunking system

mojo/mojo_public.gypi

Index: mojo/mojo_public.gypi
diff --git a/mojo/mojo_public.gypi b/mojo/mojo_public.gypi
index 5ec7020778a08b3cdae87e7013cd971b056d81e3..a728bdc75a4a225534fa4ab4929369767b97bbd3 100644
--- a/mojo/mojo_public.gypi
+++ b/mojo/mojo_public.gypi
@@ -41,46 +41,6 @@
         'public/c/system/types.h',
         'public/platform/native/system_thunks.cc',
         'public/platform/native/system_thunks.h',
-      ],
-    },
-    {
-      # GN version: //mojo/public/gles2
-      'target_name': 'mojo_gles2',
-      'type': 'static_library',
-      'defines': [
-        'MOJO_GLES2_IMPLEMENTATION',
-        'GLES2_USE_MOJO',
-      ],
-      'include_dirs': [
-        '..',
-      ],
-      'dependencies': [
-        '../third_party/khronos/khronos.gyp:khronos_headers'
-      ],
-      'direct_dependent_settings': {
-        'include_dirs': [
-          '..',
-        ],
-        'defines': [
-          'GLES2_USE_MOJO',
-        ],
-      },
-      'all_dependent_settings': {
-        'conditions': [
-          # We need to be able to call the MojoSetGLES2Thunks() function in
-          # gles2_thunks.cc
-          ['OS=="android"', {
-            'ldflags!': [
-              '-Wl,--exclude-libs=ALL',
-            ],
-          }],
-        ],
-      },
-      'sources': [
-        'public/c/gles2/gles2.h',
-        'public/c/gles2/gles2_export.h',
-        'public/platform/native/gles2_thunks.cc',
-        'public/platform/native/gles2_thunks.h',
       ],
     },
     {