Removed implementation of CHROMIUM_subscribe_uniform

gpu/command_buffer/common/BUILD.gn

Index: gpu/command_buffer/common/BUILD.gn
diff --git a/gpu/command_buffer/common/BUILD.gn b/gpu/command_buffer/common/BUILD.gn
index 55304d4809d33ccab18b6d9c9aa9ddebb32b8b29..970b6d95689e853fab19b4ae7fc66908d82493c7 100644
--- a/gpu/command_buffer/common/BUILD.gn
+++ b/gpu/command_buffer/common/BUILD.gn
@@ -54,8 +54,6 @@ source_set("common_sources") {
     "sync_token.h",
     "thread_local.h",
     "time.h",
-    "value_state.cc",
-    "value_state.h",
   ]
 
   configs += [ "//gpu:gpu_implementation" ]
@@ -94,6 +92,5 @@ mojom("interfaces") {
     "mailbox.mojom",
     "mailbox_holder.mojom",
     "sync_token.mojom",
-    "value_state.mojom",
   ]
 }