Frame context signaling: Remove reset symbols from the bitstream.

Because frame contexts now follow reference frames, explicit resets
are no longer necessary, but can simply happen at the same time
as reference frame resets.

Change-Id: Idbed3794e3ed52fa298346943a3014fa1ca23897
diff --git a/av1/encoder/bitstream.c b/av1/encoder/bitstream.c
index 568199c..9e20819 100644
--- a/av1/encoder/bitstream.c
+++ b/av1/encoder/bitstream.c
@@ -4358,6 +4358,7 @@
 #if CONFIG_PALETTE || CONFIG_INTRABC
     if (cm->intra_only) aom_wb_write_bit(wb, cm->allow_screen_content_tools);
 #endif  // CONFIG_PALETTE || CONFIG_INTRABC
+#if !CONFIG_NO_FRAME_CONTEXT_SIGNALING
     if (!cm->error_resilient_mode) {
       if (cm->intra_only) {
         aom_wb_write_bit(wb,
@@ -4370,7 +4371,7 @@
                            cm->reset_frame_context == RESET_FRAME_CONTEXT_ALL);
       }
     }
-
+#endif
 #if CONFIG_EXT_REFS
     cpi->refresh_frame_mask = get_refresh_mask(cpi);
 #endif  // CONFIG_EXT_REFS