Remove GitHub stalebot

.github/stale.yml

@@ -1,27 +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:
-  - API Change
-  - Bug
-  - Design
-  - Doc
-  - Example
-  - Feature
-  - Optimization
-  - Spec
-  - Talk
-  - Test
-# Label to use when marking an issue as stale
-staleLabel: Stale
-# Comment to post when marking an issue as stale. Set to `false` to disable
-markComment: >
-  This issue has been open for a while with no activity, has it
-  been resolved?
-# Comment to post when closing a stale issue. Set to `false` to disable
-closeComment: >
-  It looks like this issue has either been abandoned or resolved so
-  I will go ahead and close it. Feel free to re-open this issue if
-  you feel it needs attention, or open new issues as needed. Thanks!

CHANGELOG.md

@@ -1,3 +1,7 @@
+* Remove GitHub stalebot.
+
+--------------------------------------------------------------------------------
+
 Version 225:
 
 * WebSocket handshake response is deterministic on failure.