Revert "Initial actions/labeler config (#7091)" (#7156)

This reverts commit 32fdf4805a.

.github/labeler.yml

@@ -1,18 +0,0 @@
-core:
-  - quantum/**/*
-  - tmk_core/**/*
-  - drivers/**/*
-  - tests/**/*
-  - util/**/*
-keymap:
-  - users/**/*
-  - layouts/**/*
-  - keyboards/**/keymap/**/*
-cli:
-  - bin/qmk
-  - requirements.txt
-  - lib/python/**/*
-python:
-  - '**/*.py'
-documentation:
-  - docs/**/*