fix javadoc

weixin-java-mp/src/main/java/me/chanjar/weixin/mp/api/WxMpCardService.java

@@ -12,7 +12,6 @@ public interface WxMpCardService<H, P> {
 
   /**
    * 得到WxMpService
-   * @return
    */
   WxMpService getWxMpService();
 
@@ -20,7 +19,6 @@ public interface WxMpCardService<H, P> {
    * 获得卡券api_ticket，不强制刷新卡券api_ticket
    *
    * @return 卡券api_ticket
-   * @throws WxErrorException
    * @see #getCardApiTicket(boolean)
    */
   String getCardApiTicket() throws WxErrorException;

weixin-java-mp/src/main/java/me/chanjar/weixin/mp/api/impl/WxMpCardServiceImpl.java

@@ -36,10 +36,6 @@ public class WxMpCardServiceImpl implements WxMpCardService<CloseableHttpClient,
     this.wxMpService = wxMpService;
   }
 
-  /**
-   * 得到WxMpService
-   * @return
-   */
   @Override
   public WxMpService getWxMpService(){
       return this.wxMpService;