vp9,update_mbgraph_frame_stats: rm unused variables

this quiets warnings under clang-13 of the form:
../vp9/encoder/vp9_mbgraph.c:222:42: warning: variable 'gld_y_offset'
set but not used [-Wunused-but-set-variable]

Change-Id: I32170b90c07058f780b4e8100ee5217232149db8

diff --git a/vp9/encoder/vp9_mbgraph.c b/vp9/encoder/vp9_mbgraph.c
index 831c79c..7c2790c 100644 (file)
--- a/vp9/encoder/vp9_mbgraph.c
+++ b/vp9/encoder/vp9_mbgraph.c
@@ -219,7 +219,7 @@ static void update_mbgraph_frame_stats(VP9_COMP *cpi,
   VP9_COMMON *const cm = &cpi->common;
 
   int mb_col, mb_row, offset = 0;
-  int mb_y_offset = 0, arf_y_offset = 0, gld_y_offset = 0;
+  int mb_y_offset = 0;
   MV gld_top_mv = { 0, 0 };
   MODE_INFO mi_local;
   MODE_INFO mi_above, mi_left;
@@ -243,8 +243,6 @@ static void update_mbgraph_frame_stats(VP9_COMP *cpi,
   for (mb_row = 0; mb_row < cm->mb_rows; mb_row++) {
     MV gld_left_mv = gld_top_mv;
     int mb_y_in_offset = mb_y_offset;
-    int arf_y_in_offset = arf_y_offset;
-    int gld_y_in_offset = gld_y_offset;
 
     // Set up limit values for motion vectors to prevent them extending outside
     // the UMV borders.
@@ -266,8 +264,6 @@ static void update_mbgraph_frame_stats(VP9_COMP *cpi,
       xd->left_mi = &mi_left;
 
       mb_y_in_offset += 16;
-      gld_y_in_offset += 16;
-      arf_y_in_offset += 16;
       x->mv_limits.col_min -= 16;
       x->mv_limits.col_max -= 16;
     }
@@ -276,8 +272,6 @@ static void update_mbgraph_frame_stats(VP9_COMP *cpi,
     xd->above_mi = &mi_above;
 
     mb_y_offset += buf->y_stride * 16;
-    gld_y_offset += golden_ref->y_stride * 16;
-    if (alt_ref) arf_y_offset += alt_ref->y_stride * 16;
     x->mv_limits.row_min -= 16;
     x->mv_limits.row_max -= 16;
     offset += cm->mb_cols;