Remove probot-stale config

.github/stale.yml

@@ -1,44 +0,0 @@
-# Configuration for probot-stale - https://github.com/probot/stale
-
-# Number of days of inactivity before an Issue or Pull Request becomes stale
-daysUntilStale: 365
-# Number of days of inactivity before a stale Issue or Pull Request is closed
-daysUntilClose: 60
-# Issues or Pull Requests with these labels will never be considered stale. Set to `[]` to disable
-exemptLabels:
-  - pinned
-  - important
-  - regression
-  - bounty
-  - triaged
-  - confirmed
-  - PR
-# Label to use when marking as stale
-staleLabel: stale
-# Comment to post when marking as stale. Set to `false` to disable
-markComment: >
-  Thanks for your contribution!
-   
-  This issue has been automatically marked as stale because it has not had
-  recent activity. It will be closed if no further activity occurs
-  in the next 14 days.
-   
-  If you would like this issue to remain open:
-   
-   1. Verify that you can still reproduce the issue with the latest development version of Kivy
-   1. Comment that the issue is still reproducible and include:
-      * What version of Kivy you reproduced the issue on
-      * What OS and version you reproduced the issue on
-      * What steps you followed to reproduce the issue (if missing or incomplete)
-      * A [minimal working example](https://en.wikipedia.org/wiki/Minimal_Working_Example) which reproduces the issue (if missing or incomplete)
-      * Full runtime logs
-   
-  Issues that are labeled as confirmed or triaged will not be automatically
-  marked as stale. For a full list of exempt labels,
-  see the [config](https://github.com/kivy/kivy/blob/master/.github/stale.yml).
-# Comment to post when removing the stale label. Set to `false` to disable
-unmarkComment: false
-# Comment to post when closing a stale Issue or Pull Request. Set to `false` to disable
-closeComment: false
-# Limit to only `issues` or `pulls`
-only: issues