remove unused hooks with refs to master branch

[deepthi]

Description

After we renamed master branch to main, we started getting errors like this on commit

fatal: ambiguous argument 'master..': unknown revision or path not in the working tree.
Use '--' to separate paths from revisions, like this:
'git <command> [<revision>...] -- [<file>...]'

These are coming from some git hooks that aren't really used any more. Fixed by deleting the files.

Related Issue(s)

Checklist

• Tests were added or are not required
• Documentation was added or is not required

Deployment Notes

[deepthi]

cc @acharis @dctrwatson

[ghost]

thanks!