修复设备不能正常删除的bug

src/main/java/com/genersoft/iot/vmp/storager/dao/PlatformChannelMapper.java

@@ -40,13 +40,13 @@ public interface PlatformChannelMapper {
             "</script>")
     int delChannelForGB(String platformId, List<ChannelReduce> channelReducesToDel);
 
-    @Delete("<script> "+
-            "DELETE from wvp_platform_gb_channel WHERE device_channel_id in " +
-            "( select  temp.device_channel_id from " +
-            "(select pgc.device_channel_id from wvp_platform_gb_channel pgc " +
-            "left join wvp_device_channel dc on dc.id = pgc.device_channel_id where dc.device_id  =#{deviceId} " +
-            ") temp)" +
-            "</script>")
+    @Delete("DELETE pgc " +
+            "FROM " +
+            "wvp_platform_gb_channel pgc," +
+            "wvp_device_channel dc " +
+            "WHERE " +
+            "dc.id = pgc.device_channel_id " +
+            "AND dc.device_id  = #{deviceId} ")
     int delChannelForDeviceId(String deviceId);
 
     @Delete("<script> "+