Remove stale bot

.github/stale.yml

@@ -1,19 +0,0 @@
-# Number of days of inactivity before an issue becomes stale
-daysUntilStale: 30
-# Number of days of inactivity before a stale issue is closed
-daysUntilClose: 7
-# Issues with these labels will never be considered stale
-exemptLabels:
-  - ":pushpin: pinned"
-  - ":game_die: dependencies"
-# Set to true to ignore issues in a milestone (defaults to false)
-exemptMilestones: true
-# Label to use when marking an issue as stale
-staleLabel: ":skull: stale"
-# Comment to post when marking an issue as stale. Set to `false` to disable
-markComment: >
-  This issue has been automatically marked as stale because it has not had
-  recent activity. It will be closed if no further activity occurs. Thank you
-  for your contributions.
-# Comment to post when closing a stale issue. Set to `false` to disable
-closeComment: false