vcs.json is not updated when package is removed due to conflict resolution

[kasper93]

Affected Version

Tested with current HEAD (cd4462761a3b67ebc7ae3bb51cff0c1b0345504a)

Describe the bug

vcs.json is not updated when package is removed due to conflict resolution

Reproduction Steps

1. yay -S yay-git
2. yay -S yay
3. grep yay-git vcs.json

Now non-existent package yay-git will still be there.

Expected behavior

I would expect vcs.json to be kept clean of orphans, which can be only manually removed. It is very common pattern to go back to non-aur/non-git version of a package,