• VSCode Version: 1.7.2
• OS Version: macOS 10.12.1

CMD + Backspace at the end of a line properly removes the characters line, leaving the cursor at Col 1. But using the same combo a second time does nothing. You have to release CMD for Backspace to remove the line. You should be able to keep CMD pressed and either remove all the characters in a line, or remove the line itself if the line is empty.

Steps to Reproduce:

1. Starting at the right of a line of characters, use CMD + Backspace to remove the characters.
2. Hit the same combo again, and the line isn't removed.