chore(docs): remove pin comment

live reload is working again under click 8.3.1

Author: thekaveman

docs/requirements.txt

@@ -1,8 +1,3 @@
-# Temporary local pin to work around bug in click>=8.2.2 that breaks watching.
-# See: https://github.com/squidfunk/mkdocs-material/issues/8478
-#      https://github.com/mkdocs/mkdocs/issues/4032
-#      https://github.com/pallets/click/issues/3084
-# Remove when a fixed version of Click has been released
 click==8.3.1
 mdx_truly_sane_lists
 mkdocs==1.6.1