Remove the unneeded parameter from check_trailing_bits

Change-Id: I2e041ffce62662c4e03f4d8ecafd440e4bc8081c
diff --git a/av1/decoder/obu.c b/av1/decoder/obu.c
index 586e52f..9205526 100644
--- a/av1/decoder/obu.c
+++ b/av1/decoder/obu.c
@@ -201,8 +201,7 @@
 #endif
 
 #if CONFIG_TRAILING_BITS
-  int consumed_byte = 0;
-  av1_check_trailing_bits(pbi, rb, &consumed_byte);
+  av1_check_trailing_bits(pbi, rb);
 #endif
 
   pbi->sequence_header_ready = 1;