Feature Request: Do not highlight in git diff

[halilim]

To reproduce:

1. Remove some code & stage the changes in a file with trailing spaces
2. Source Control (Ctrl+Shift+G)

Actual: Both removed code and the trailing spaces are in red, making it harder to understand if the trailing spaces were removed, or if it's the extension that is highlighting them. The giveaway is that the code removals are highlighted only on the left pane, while trailing spaces are highlighted only on the right pane. Though IMO this is still confusing.

Expected: Trailing spaces are not highlighted in git diff