Revert "Generate GrGLInterface and GrGlAssembleInterface* from table"

This reverts commit 93b3dce89d0cada44fd619571d55a1c83b751f70.

Revert "Delete old assembleInterface code"

This reverts commit 7b1cf20d4758d4212138dfa2b49e43e32c2d55b4.

Revert "Delete in favor of autogenerated file"

This reverts commit 0223bd01d8e9b29b5deddd190c96e424f727b25c.

Bug: skia:8474
NOTRY:true
Change-Id: I23a904347f9d6cefd1710a2de056c39d52f4b178
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/203463
Reviewed-by: Stan Iliev <stani@google.com>
Commit-Queue: Stan Iliev <stani@google.com>
diff --git a/gn/gpu.gni b/gn/gpu.gni
index 26cdb32..e2e5463 100644
--- a/gn/gpu.gni
+++ b/gn/gpu.gni
@@ -420,10 +420,10 @@
   "$_src/gpu/text/GrTextBlobVertexRegenerator.cpp",
   "$_src/gpu/text/GrTextTarget.h",
 
-  "$_src/gpu/gl/GrGLAssembleGLESInterfaceAutogen.cpp",
-  "$_src/gpu/gl/GrGLAssembleGLInterfaceAutogen.cpp",
-  "$_src/gpu/gl/GrGLAssembleHelpers.cpp",
   "$_src/gpu/gl/GrGLAssembleInterface.cpp",
+  "$_src/gpu/gl/GrGLAssembleInterface_gl.cpp",
+  "$_src/gpu/gl/GrGLAssembleInterface_gles.cpp",
+  "$_src/gpu/gl/GrGLAssembleHelpers.cpp",
   "$_src/gpu/gl/GrGLBuffer.cpp",
   "$_src/gpu/gl/GrGLBuffer.h",
   "$_src/gpu/gl/GrGLCaps.cpp",
@@ -441,7 +441,7 @@
   "$_src/gpu/gl/GrGLGpuCommandBuffer.h",
   "$_src/gpu/gl/GrGLGpuProgramCache.cpp",
   "$_src/gpu/gl/GrGLExtensions.cpp",
-  "$_src/gpu/gl/GrGLInterfaceAutogen.cpp",
+  "$_src/gpu/gl/GrGLInterface.cpp",
   "$_src/gpu/gl/GrGLIRect.h",
   "$_src/gpu/gl/GrGLProgram.cpp",
   "$_src/gpu/gl/GrGLProgram.h",