Revert "Declare ms_stat inside #if COLLECT_PICK_MODE_STAT"

This reverts commit 06ba96fc26e06d3bc0e6c8c7535b602186b96b6f.

Reason for revert: The CL is wrong. The declaration of ms_stat was
already inside #if COLLECT_PICK_MODE_STAT.

Change-Id: Id0d07d9900c8f87b80551413ffb320b3c2031273
diff --git a/av1/encoder/nonrd_pickmode.c b/av1/encoder/nonrd_pickmode.c
index e62cac1..4e6b3a9 100644
--- a/av1/encoder/nonrd_pickmode.c
+++ b/av1/encoder/nonrd_pickmode.c
@@ -2323,9 +2323,7 @@
   struct aom_usec_timer bsize_timer;
 } mode_search_stat;
 
-#if COLLECT_PICK_MODE_STAT
 static mode_search_stat ms_stat;
-#endif
 
 static AOM_INLINE void print_stage_time(const char *stage_name,
                                         int64_t stage_time,