Revert of Improve tracking of bound FBOs in GrGLGpu.

src/gpu/gl/GrGLNoOpInterface.cpp

Index: src/gpu/gl/GrGLNoOpInterface.cpp
diff --git a/src/gpu/gl/GrGLNoOpInterface.cpp b/src/gpu/gl/GrGLNoOpInterface.cpp
index 38ad65e5c156fb8ad75f4a4c4d6f50b4faed9e11..6b8880ed81c9c19ad1bf646438b4a88fa41e2ba1 100644
--- a/src/gpu/gl/GrGLNoOpInterface.cpp
+++ b/src/gpu/gl/GrGLNoOpInterface.cpp
@@ -440,8 +440,7 @@
 
 GrGLenum GR_GL_FUNCTION_TYPE noOpGLCheckFramebufferStatus(GrGLenum target) {
 
-    GrAlwaysAssert(GR_GL_FRAMEBUFFER == target || GR_GL_READ_FRAMEBUFFER == target ||
-                   GR_GL_DRAW_FRAMEBUFFER == target);
+    GrAlwaysAssert(GR_GL_FRAMEBUFFER == target);
 
     return GR_GL_FRAMEBUFFER_COMPLETE;
 }