Minor fix to GLOBAL_MOTION_RATE

Removes spurious ';'

Change-Id: I63c9fe1ef116d1d3c6a61a55072445a2b913b616

av1/encoder/rdopt.c

diff --git a/av1/encoder/rdopt.c b/av1/encoder/rdopt.c
index f189bd8..5ddb4d1 100644
--- a/av1/encoder/rdopt.c
+++ b/av1/encoder/rdopt.c
@@ -4363,7 +4363,7 @@
        ? 0                                                              \
        : get_gmbitcost(&cm->global_motion[(ref)],                       \
                        cm->fc->global_motion_types_prob) /              \
-             GLOBAL_MOTION_COST_AMORTIZATION_BLKS);
+             GLOBAL_MOTION_COST_AMORTIZATION_BLKS)
 #else
 #define GLOBAL_MOTION_RATE(ref) 0
 #endif  // GLOBAL_MOTION_COST_AMORTIZATION_BLKS > 0