Remove release label configuration

Removed the release label configuration from labeler.yml.

Author: dermatz

.github/labeler.yml

@@ -8,7 +8,3 @@ feature:
 
 fix:
  - head-branch: ['^fix','fix','fix:']
-
-# Add 'release' label to any PR that is opened against the `main` branch
-release:
- - base-branch: 'main'