Revert of cmaa, gpu: use R8 image texture when GL_NV_image_formats is available.

gpu/command_buffer/service/gles2_cmd_decoder.cc

Index: gpu/command_buffer/service/gles2_cmd_decoder.cc
diff --git a/gpu/command_buffer/service/gles2_cmd_decoder.cc b/gpu/command_buffer/service/gles2_cmd_decoder.cc
index b52f10133179c663142940db72a0d7a759f3fea9..46620828f85d7d7c261a207988eae4ecfe5f2ea0 100644
--- a/gpu/command_buffer/service/gles2_cmd_decoder.cc
+++ b/gpu/command_buffer/service/gles2_cmd_decoder.cc
@@ -17448,6 +17448,7 @@
       apply_framebuffer_attachment_cmaa_intel_.reset(
           new ApplyFramebufferAttachmentCMAAINTELResourceManager());
       apply_framebuffer_attachment_cmaa_intel_->Initialize(this);
+      RestoreCurrentFramebufferBindings();
       if (LOCAL_PEEK_GL_ERROR("glApplyFramebufferAttachmentCMAAINTEL") !=
           GL_NO_ERROR)
         return;