diff --git a/av1/decoder/decodeframe.c b/av1/decoder/decodeframe.c
index 08ac271..0d94b57 100644
--- a/av1/decoder/decodeframe.c
+++ b/av1/decoder/decodeframe.c
@@ -2626,7 +2626,6 @@
   const int tile_cols = cm->tile_cols;
   const int tile_rows = cm->tile_rows;
   int tc = 0;
-  int first_tile_in_tg = 0;
 
   for (int r = 0; r < tile_rows; ++r) {
     for (int c = 0; c < tile_cols; ++c, ++tc) {
@@ -2640,7 +2639,6 @@
       if (data + hdr_offset >= data_end)
         aom_internal_error(&cm->error, AOM_CODEC_CORRUPT_FRAME,
                            "Data ended before all tiles were read.");
-      first_tile_in_tg += tc == first_tile_in_tg ? pbi->tg_size : 0;
       data += hdr_offset;
       get_tile_buffer(data_end, pbi->tile_size_bytes, is_last,
                       &pbi->common.error, &data, buf);
diff --git a/av1/decoder/decoder.h b/av1/decoder/decoder.h
index 685c931..58fc9db 100644
--- a/av1/decoder/decoder.h
+++ b/av1/decoder/decoder.h
@@ -209,9 +209,6 @@
   int acct_enabled;
   Accounting accounting;
 #endif
-  int tg_size;   // Number of tiles in the current tilegroup
-  int tg_start;  // First tile in the current tilegroup
-  int tg_size_bit_offset;
   int sequence_header_ready;
   int sequence_header_changed;
 #if CONFIG_INSPECTION