More cleanup of GYP code in ui/ozone

ui/ozone/BUILD.gn

Index: ui/ozone/BUILD.gn
diff --git a/ui/ozone/BUILD.gn b/ui/ozone/BUILD.gn
index ad01225c3db7ada2080e197f1651bb0a3f74fe4c..70a0b92bf6c101d2d9fd13cbfa51c4cf65fa1192 100644
--- a/ui/ozone/BUILD.gn
+++ b/ui/ozone/BUILD.gn
@@ -62,7 +62,6 @@ config("vgem_map") {
   }
 }
 
-# GYP version: ui/ozone/ozone.gyp:ozone_base
 component("ozone_base") {
   sources = [
     "public/cursor_factory_ozone.cc",
@@ -173,7 +172,6 @@ component("ozone") {
   ]
 }
 
-# GYP version: ui/ozone/ozone.gyp:generate_ozone_platform_list
 action("generate_ozone_platform_list") {
   script = "generate_ozone_platform_list.py"
   outputs = [
@@ -193,7 +191,6 @@ action("generate_ozone_platform_list") {
   visibility += [ "//media:*" ]
 }
 
-# GYP version: ui/ozone/ozone.gyp:generate_constructor_list
 action("generate_constructor_list") {
   script = "generate_constructor_list.py"