decoder.c: cleanup dead calls to dealloc

There's no corresponding calls to 'alloc' anyway.

Change-Id: Iedbb1fae7aed6f8aa51707717e73529a3b381bc1
diff --git a/av1/decoder/decoder.c b/av1/decoder/decoder.c
index 7dcf19d..abc5643 100644
--- a/av1/decoder/decoder.c
+++ b/av1/decoder/decoder.c
@@ -148,10 +148,6 @@
   aom_free(pbi->tile_worker_info);
   aom_free(pbi->tile_workers);
 
-  if (pbi->num_tile_workers > 0) {
-    av1_loop_filter_dealloc(&pbi->lf_row_sync);
-  }
-
 #if CONFIG_ACCOUNTING
   aom_accounting_clear(&pbi->accounting);
 #endif
diff --git a/av1/decoder/decoder.h b/av1/decoder/decoder.h
index 7bce718..c861bf0 100644
--- a/av1/decoder/decoder.h
+++ b/av1/decoder/decoder.h
@@ -75,8 +75,6 @@
 
   TileBufferDec tile_buffers[MAX_TILE_ROWS][MAX_TILE_COLS];
 
-  AV1LfSync lf_row_sync;
-
   int allow_lowbitdepth;
   int max_threads;
   int inv_tile_order;
diff --git a/av1/encoder/encoder.c b/av1/encoder/encoder.c
index 7cef2f2..119ad9e 100644
--- a/av1/encoder/encoder.c
+++ b/av1/encoder/encoder.c
@@ -3111,8 +3111,6 @@
   aom_free(cpi->tile_thr_data);
   aom_free(cpi->workers);
 
-  if (cpi->num_workers > 1) av1_loop_filter_dealloc(&cpi->lf_row_sync);
-
   dealloc_compressor_data(cpi);
 
   for (i = 0; i < sizeof(cpi->mbgraph_stats) / sizeof(cpi->mbgraph_stats[0]);
diff --git a/av1/encoder/encoder.h b/av1/encoder/encoder.h
index 9158909..335dace 100644
--- a/av1/encoder/encoder.h
+++ b/av1/encoder/encoder.h
@@ -577,7 +577,6 @@
   int num_workers;
   AVxWorker *workers;
   struct EncWorkerData *tile_thr_data;
-  AV1LfSync lf_row_sync;
   int refresh_frame_mask;
   int existing_fb_idx_to_show;
   int is_arf_filter_off[MAX_EXT_ARFS + 1];