Remove unnecessary clients and rename files.

- Remove clients for obsolete services.
- Rename display protocol defs file to match purpose.
- Rename display manager client file. "impl" does not match naming
  conventions used by DVR libraries.
- Remove video mesh surface interface. This will be replaced by more
  general surface support in the unified O compositor.

Bug: 36401174
Test: Build; run cube sea.
Change-Id: Idb782623319329f6fa1b0aa45005d9fee3b9957d
diff --git a/libs/vr/libvrflinger/vsync_service.cpp b/libs/vr/libvrflinger/vsync_service.cpp
index 612b9b2..cda815c 100644
--- a/libs/vr/libvrflinger/vsync_service.cpp
+++ b/libs/vr/libvrflinger/vsync_service.cpp
@@ -9,7 +9,7 @@
 
 #include <pdx/default_transport/service_endpoint.h>
 #include <private/dvr/clock_ns.h>
-#include <private/dvr/display_rpc.h>
+#include <private/dvr/display_protocol.h>
 #include <private/dvr/display_types.h>
 
 using android::pdx::Channel;