Revert of Make Android StreamTexture implement GLStreamTextureImage

gpu/command_buffer/service/gles2_cmd_copy_texture_chromium.cc

Index: gpu/command_buffer/service/gles2_cmd_copy_texture_chromium.cc
diff --git a/gpu/command_buffer/service/gles2_cmd_copy_texture_chromium.cc b/gpu/command_buffer/service/gles2_cmd_copy_texture_chromium.cc
index dad3d031aa910086cfe228cb2dbb514327be02f6..407f1baa9b22b59966db2f6a84265daaa7e1e115 100644
--- a/gpu/command_buffer/service/gles2_cmd_copy_texture_chromium.cc
+++ b/gpu/command_buffer/service/gles2_cmd_copy_texture_chromium.cc
@@ -487,39 +487,10 @@
     return;
   }
 
-  DoCopySubTextureWithTransform(
-      decoder, source_target, source_id, source_internal_format, dest_target,
-      dest_id, dest_internal_format, xoffset, yoffset, x, y, width, height,
-      dest_width, dest_height, source_width, source_height, flip_y,
-      premultiply_alpha, unpremultiply_alpha, kIdentityMatrix);
-}
-
-void CopyTextureCHROMIUMResourceManager::DoCopySubTextureWithTransform(
-    const gles2::GLES2Decoder* decoder,
-    GLenum source_target,
-    GLuint source_id,
-    GLenum source_internal_format,
-    GLenum dest_target,
-    GLuint dest_id,
-    GLenum dest_internal_format,
-    GLint xoffset,
-    GLint yoffset,
-    GLint x,
-    GLint y,
-    GLsizei width,
-    GLsizei height,
-    GLsizei dest_width,
-    GLsizei dest_height,
-    GLsizei source_width,
-    GLsizei source_height,
-    bool flip_y,
-    bool premultiply_alpha,
-    bool unpremultiply_alpha,
-    const GLfloat transform_matrix[16]) {
   DoCopyTextureInternal(decoder, source_target, source_id, dest_target, dest_id,
       xoffset, yoffset, x, y, width, height, dest_width, dest_height,
       source_width, source_height, flip_y, premultiply_alpha,
-      unpremultiply_alpha, transform_matrix);
+      unpremultiply_alpha, kIdentityMatrix);
 }
 
 void CopyTextureCHROMIUMResourceManager::DoCopyTextureWithTransform(