[t:2557], get handlerton compoling by removing VOID casts

git-svn-id: file:///svn/mysql/tokudb-engine/tokudb-engine@19806 c7de825b-a66e-492c-adef-691d508d4ae1

storage/tokudb/hatoku_hton.cc

@@ -174,8 +174,8 @@ static int tokudb_init_func(void *p) {
 
     tokudb_hton = (handlerton *) p;
 
-    VOID(pthread_mutex_init(&tokudb_mutex, MY_MUTEX_INIT_FAST));
-    VOID(pthread_mutex_init(&tokudb_meta_mutex, MY_MUTEX_INIT_FAST));
+    pthread_mutex_init(&tokudb_mutex, MY_MUTEX_INIT_FAST);
+    pthread_mutex_init(&tokudb_meta_mutex, MY_MUTEX_INIT_FAST);
     (void) my_hash_init(&tokudb_open_tables, table_alias_charset, 32, 0, 0, (my_hash_get_key) tokudb_get_key, 0, 0);
 
     tokudb_hton->state = SHOW_OPTION_YES;