Delete SkGTypeface and SkGScalerContext

Bug: skia:
Change-Id: I6a513d0cb3600678bc3b9c2bdfa8e04d692e9acf
Reviewed-on: https://skia-review.googlesource.com/14191
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Matt Sarett <msarett@google.com>
diff --git a/gn/gm.gni b/gn/gm.gni
index 252de69..e85ef7e 100644
--- a/gn/gm.gni
+++ b/gn/gm.gni
@@ -61,13 +61,12 @@
   "$_gm/clippedbitmapshaders.cpp",
   "$_gm/color4f.cpp",
   "$_gm/coloremoji.cpp",
+  "$_gm/coloremoji_blendmodes.cpp",
   "$_gm/colorfilteralpha8.cpp",
   "$_gm/colorfilterimagefilter.cpp",
   "$_gm/colorfilters.cpp",
   "$_gm/colormatrix.cpp",
   "$_gm/colorspacexform.cpp",
-  "$_gm/colortype.cpp",
-  "$_gm/colortypexfermode.cpp",
   "$_gm/colorwheel.cpp",
   "$_gm/complexclip.cpp",
   "$_gm/complexclip_blur_tiled.cpp",