Remove docker and appveyor configuration files

These weren't used by CI nor were they regularly tested.
If somebody misses something, we can bring them back of course.

This cleanup was triggered with the switch to pytest, and I wanted
to remove everything that was present just for nosetest.

Author: Byron

.appveyor.yml

@@ -68,13 +68,4 @@ jobs:
       run: |
         set -x
         pip install -r doc/requirements.txt
-        make -C doc html
-
-    # - name: Test with nose
-      # run: |
-        # set -x
-        # pip install nose
-        # nosetests -v --with-coverage
-      # continue-on-error: false
-
-
+        make -C doc html

.dockerignore

@@ -1,4 +1,4 @@
-.PHONY: all clean release force_release docker-build test nose-pdb
+.PHONY: all clean release force_release
 
 all:
 	@grep -Ee '^[a-z].*:' Makefile | cut -d: -f1 | grep -vF all
@@ -17,18 +17,4 @@ release: clean
 force_release: clean
 	git push --tags origin main
 	python3 setup.py sdist bdist_wheel
-	twine upload -s -i 27C50E7F590947D7273A741E85194C08421980C9 dist/*
-
-docker-build:
-	docker build --quiet -t gitpython:xenial -f Dockerfile .
-
-test: docker-build
-	# NOTE!!!
-	# NOTE!!! If you are not running from main or have local changes then tests will fail
-	# NOTE!!!
-	docker run --rm -v ${CURDIR}:/src -w /src -t gitpython:xenial tox
-
-nose-pdb: docker-build
-	# run tests under nose and break on error or failure into python debugger
-	# HINT: set PYVER to "pyXX" to change from the default of py37 to pyXX for nose tests
-	docker run --rm --env PYVER=${PYVER} -v ${CURDIR}:/src -w /src -it gitpython:xenial /bin/bash dockernose.sh
+	twine upload -s -i 27C50E7F590947D7273A741E85194C08421980C9 dist/*