Update strings.xml

Author: KyuubiRan

app/src/main/res/values-zh-rCN/strings.xml

@@ -5,5 +5,4 @@
     <string name="unlock_pro_title">解锁付费版</string>
     <string name="game_hack_title">游戏修改</string>
     <string name="always_first_try_title">永远是第一次尝试</string>
-    <string name="allow_repeat_rewards">允许重复获得奖励</string>
 </resources>