Remove an extra paragraph in advanced room settings

This was introduced (presumably accidentally) in
[#30169](https://github.com/element-hq/element-web/pull/30169/files#diff-89268874351e08a327e47b0a7e1d4e916e1ad8dc4be8b4a3f1ef67f3f83a5bc9R459)

Author: andybalaam

src/components/views/dialogs/CreateRoomDialog.tsx

@@ -456,7 +456,6 @@ export default class CreateRoomDialog extends React.Component<IProps, IState> {
                                     checked={this.state.noFederate}
                                     helpMessage={federateLabel}
                                 />
-                                z<p>{federateLabel}</p>
                             </details>
                         )}
                     </Form.Root>

test/unit-tests/components/views/dialogs/__snapshots__/CreateRoomDialog-test.tsx.snap

@@ -187,10 +187,6 @@ exports[`<CreateRoomDialog /> for a private room should create a private room 1`
               </span>
             </div>
           </div>
-          z
-          <p>
-            You might enable this if the room will only be used for collaborating with internal teams on your homeserver. This cannot be changed later.
-          </p>
         </details>
       </form>
     </div>