chore: don't remove needs info label when commenting on a stale issue

1) Removing the "needs info" label when someone comments on a stale issue seems incorrect.
2) By default, the stale action removes the "stale" label upon commenting. However, the labels-to-remove-when-unstale option triggers an additional API request to remove the "stale" label, which was already removed in the previous API call.

Signed-off-by: Daniel Kesselberg <mail@danielkesselberg.de>

.github/workflows/stale.yml

@@ -27,7 +27,6 @@ jobs:
           for your contributions.
         stale-issue-label: 'stale'
         only-labels: 'needs info'
-        labels-to-remove-when-unstale: 'needs info,stale'
         exempt-issue-labels: '1. to develop,2. developing,3. to review,4. to release,security'
         days-before-stale: 30
         days-before-close: 14