ACP2E-3408: [Pagebuilder Preview UI Issue] The buttons in the Page Builder column aren't lining up correctly

 - Fixed the issue.

Author: devarul

app/code/Magento/PageBuilder/view/adminhtml/web/css/source/content-type/column-group/_default.less

@@ -24,13 +24,6 @@
         box-sizing: border-box;
         width: 100%;
 
-        &.no-column-line {
-            .element-children {
-                display: flex;
-                justify-content: right;
-            }
-        }
-
         .drop-placeholder {
             background: @color-red-berry;
             bottom: 0;