Revert "穿梭框样式---fix3"

This reverts commit 4a622771.

src/components/app-transfer/app-transfer.less

@@ -15,9 +15,6 @@
                 max-height: 160px;
                 .el-checkbox-group{
                     max-height: 160px;
-                    .el-checkbox+.el-checkbox {
-                        margin-left: 0px; 
-                    }
                 }
             }
           }