Revert of [Cast] Compute utilization metrics and add performance overlay.

media/cast/BUILD.gn

Index: media/cast/BUILD.gn
diff --git a/media/cast/BUILD.gn b/media/cast/BUILD.gn
index 48c3bc3bd32f785ff020d628d58f09e34254624e..b6df09f4e874838ae7bbf76433b65d26749229be 100644
--- a/media/cast/BUILD.gn
+++ b/media/cast/BUILD.gn
@@ -121,10 +121,6 @@
     "sender/fake_software_video_encoder.h",
     "sender/frame_sender.cc",
     "sender/frame_sender.h",
-    "sender/performance_metrics_overlay.cc",
-    "sender/performance_metrics_overlay.h",
-    "sender/sender_encoded_frame.cc",
-    "sender/sender_encoded_frame.h",
     "sender/size_adaptable_video_encoder_base.cc",
     "sender/size_adaptable_video_encoder_base.h",
     "sender/software_video_encoder.h",
@@ -176,12 +172,16 @@
       "sender/h264_vt_encoder.h",
     ]
 
-    libs += [ "CoreVideo.framework" ]
+    libs += [
+      "CoreVideo.framework",
+    ]
   }
 
   if (is_mac) {
     # Required by audio_encoder.cc.
-    libs += [ "AudioToolbox.framework" ]
+    libs += [
+      "AudioToolbox.framework",
+    ]
   }
 }