Merge remote-tracking branch 'origin/master'

mec-biz/src/main/resources/config/mybatis/ClassGroupMapper.xml

@@ -784,7 +784,6 @@
         <foreach collection="classGroupIds" item="classGroupId" open="(" close=")" separator=",">
             #{classGroupId}
         </foreach>
-        AND group_type_ = 'MUSIC'
     </delete>
 
     <select id="findClassGroupByType" resultMap="ClassGroupTeachers">