Fix typo and cleanup Makefile

Author: Denis-Averin

.github/workflows/python-package.yml

@@ -12,7 +12,7 @@ on:
 jobs:
   build:
     # See https://raw.githubusercontent.com/actions/python-versions/main/versions-manifest.json
-    # for awailable Python versions on ubuntu
+    # for available Python versions on ubuntu
     runs-on: ubuntu-20.04
     strategy:
       matrix:

Makefile

@@ -8,14 +8,6 @@ check_git:
 	git fetch origin
 	git diff origin/main --exit-code
 
-.PHONY: clean-git
-clean-git:
-	git clean -dfx --exclude='tests/configuration*.json'
-
-.PHONY: clean-pyc
-clean-pyc:
-	find . -type f -name '*.pyc' -delete
-
 .PHONY: dist
 dist:
 	python setup.py sdist bdist_wheel --universal