Remove uused rc field.

Remove unused total_target_vs_actual rc field.

Change-Id: I87fe1fef57fa9f1950239d8354f38abefbfe5631
diff --git a/av1/encoder/ratectrl.c b/av1/encoder/ratectrl.c
index aaa9dfd..7f595fc 100644
--- a/av1/encoder/ratectrl.c
+++ b/av1/encoder/ratectrl.c
@@ -310,7 +310,6 @@
 
   rc->total_actual_bits = 0;
   rc->total_target_bits = 0;
-  rc->total_target_vs_actual = 0;
 
   rc->frames_since_key = 8;  // Sensible default for first frame.
   rc->this_key_frame_forced = 0;
@@ -1829,8 +1828,6 @@
   rc->total_actual_bits += rc->projected_frame_size;
   rc->total_target_bits += cm->show_frame ? rc->avg_frame_bandwidth : 0;
 
-  rc->total_target_vs_actual = rc->total_actual_bits - rc->total_target_bits;
-
   if (is_altref_enabled(cpi->oxcf.gf_cfg.lag_in_frames,
                         cpi->oxcf.gf_cfg.enable_auto_arf) &&
       refresh_frame_flags->alt_ref_frame &&
diff --git a/av1/encoder/ratectrl.h b/av1/encoder/ratectrl.h
index aefb5b4..3f1756f 100644
--- a/av1/encoder/ratectrl.h
+++ b/av1/encoder/ratectrl.h
@@ -258,7 +258,6 @@
 
   int64_t total_actual_bits;
   int64_t total_target_bits;
-  int64_t total_target_vs_actual;
 
   /*!\endcond */
   /*!
diff --git a/av1/encoder/svc_layercontext.c b/av1/encoder/svc_layercontext.c
index c43edf9..e75ad3c 100644
--- a/av1/encoder/svc_layercontext.c
+++ b/av1/encoder/svc_layercontext.c
@@ -38,7 +38,6 @@
       RATE_CONTROL *const lrc = &lc->rc;
       lrc->ni_av_qi = oxcf->rc_cfg.worst_allowed_q;
       lrc->total_actual_bits = 0;
-      lrc->total_target_vs_actual = 0;
       lrc->ni_tot_qi = 0;
       lrc->tot_q = 0.0;
       lrc->avg_q = 0.0;