In VScode on Mac, you can remove all lines starting with the string this.viewTopTitle = and the empty line below it with the following steps:

Open the find and replace dialog with Cmd+Shift+F.
Enter the string this.viewTopTitle = in the “Find” field.
Enter ^$ in the “Replace” field.
Check the “Regular expression” checkbox.
Click the “Replace All” button.
This will remove all lines starting with this.viewTopTitle = and the empty line below it. If you want to only remove the lines starting with the string, uncheck the “Regular expression” checkbox before clicking “Replace All”.
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