Minor code aesthetic change to use Redis code base style rule of saving...

Minor code aesthetic change to use Redis code base style rule of saving vertical space when possible.

src/t_hash.c

@@ -75,10 +75,7 @@ int hashTypeGetFromHashTable(robj *o, robj *field, robj **value) {
     redisAssert(o->encoding == REDIS_ENCODING_HT);
 
     de = dictFind(o->ptr, field);
-    if (de == NULL) {
-        return -1;
-    }
-
+    if (de == NULL) return -1;
     *value = dictGetVal(de);
     return 0;
 }