Remove unused Travis CI config

.ci/after_success.sh

@@ -11,9 +11,3 @@ fi
 if [[ $TRAVIS ]]; then
     codecov --flags TravisCI
 fi
-
-if [ "$TRAVIS_PYTHON_VERSION" == "3.9" ]; then
-    # Coverage and quality reports on just the latest diff.
-    depends/diffcover-install.sh
-    depends/diffcover-run.sh
-fi

.ci/install.sh

@@ -34,10 +34,9 @@ python3 -m pip install test-image-results
 # TODO Remove condition when numpy supports 3.10
 if ! [ "$GHA_PYTHON_VERSION" == "3.10-dev" ]; then python3 -m pip install numpy ; fi
 
-# TODO Remove when 3.8 / 3.9 / PyPy3 includes setuptools 49.3.2+:
+# TODO Remove when 3.8 / 3.9 includes setuptools 49.3.2+:
 if [ "$GHA_PYTHON_VERSION" == "3.8" ]; then python3 -m pip install -U "setuptools>=49.3.2" ; fi
 if [ "$GHA_PYTHON_VERSION" == "3.9" ]; then python3 -m pip install -U "setuptools>=49.3.2" ; fi
-if [ "$TRAVIS_PYTHON_VERSION" == "pypy3.6-7.3.1" ]; then python3 -m pip install -U "setuptools>=49.3.2" ; fi
 
 # PyQt5 doesn't support PyPy3
 # Wheel doesn't yet support 3.10
@@ -48,9 +47,6 @@ if [[ $GHA_PYTHON_VERSION == 3.* && $GHA_PYTHON_VERSION != "3.10-dev" ]]; then
     python3 -m pip install pyqt5
 fi
 
-# docs only on Python 3.9
-if [ "$TRAVIS_PYTHON_VERSION" == "3.9" ]; then python3 -m pip install -r requirements.txt ; fi
-
 # webp
 pushd depends && ./install_webp.sh && popd
 

.ci/test.sh

@@ -3,8 +3,3 @@
 set -e
 
 python -bb -m pytest -v -x -W always --cov PIL --cov Tests --cov-report term Tests
-
-# Docs
-if [ "$TRAVIS_PYTHON_VERSION" == "3.9" ] && [ "$TRAVIS_CPU_ARCH" == "amd64" ]; then
-    make doccheck
-fi

requirements.txt

@@ -4,8 +4,6 @@ check-manifest
 coverage
 jarn.viewdoc
 olefile
-pycodestyle
-pyflakes
 pyroma
 pytest
 pytest-cov