Cleanup the retired repo

This repo is not properly retired. Retired repos can only have two files:
- README.rst
- gitreview

To cleanup the retirement of this repo, keeping these two files only and
removing the other remaining files if there is any.
Detail: https://etherpad.opendev.org/p/tc-retirement-cleanup

Change-Id: I69cb089425ad889f4cd0aad17c10de6bd19eb1b0

.gitignore

@@ -1,73 +0,0 @@
-# Compiled source #
-###################
-*.com
-*.class
-*.dll
-*.exe
-*.o
-*.so
-*.pyc
-build/
-dist/
-doc/build/
-
-# Packages #
-############
-# it's better to unpack these files and commit the raw source
-# git has its own built in compression methods
-*.7z
-*.dmg
-*.gz
-*.iso
-*.jar
-*.rar
-*.tar
-*.zip
-
-# Logs and databases #
-######################
-*.log
-*.sql
-*.sqlite
-logs/*
-
-# OS generated files #
-######################
-.DS_Store
-.DS_Store?
-._*
-.Spotlight-V100
-.Trashes
-.idea
-.tox
-*.sublime*
-*.egg-info
-Icon?
-ehthumbs.db
-Thumbs.db
-.eggs
-
-# User driven backup files #
-############################
-*.bak
-*.swp
-
-# Generated by pbr while building docs
-######################################
-AUTHORS
-ChangeLog
-
-# Files created by releasenotes build
-releasenotes/build
-
-# Test temp files
-tests/plugins
-tests/playbooks
-tests/test.retry
-
-# Vagrant artifacts
-.vagrant
-
-# Auto-generated documentation
-doc/source/auto_*
-doc/source/rhel7