Remove travis and appveyor configs

.appveyor.yml

@@ -1,21 +0,0 @@
-environment:
-  matrix:
-  - TOXENV: "py35-pytestlatest"
-  - TOXENV: "py36-pytestlatest"
-  - TOXENV: "py37-pytestlatest"
-  - TOXENV: "py38-pytestlatest"
-  - TOXENV: "py38-pytestmaster"
-  - TOXENV: "py38-psutil"
-
-install:
-  - C:\Python38\python -m pip install -U pip setuptools virtualenv
-  - C:\Python38\python -m pip install -U tox setuptools_scm
-
-build: false  # Not a C# project, build stuff at the test step instead.
-
-test_script:
-  - C:\Python38\python -m tox
-
-# We don't deploy anything on tags with AppVeyor, we use Travis instead, so we
-# might as well save resources
-skip_tags: true

.travis.yml

@@ -1,64 +0,0 @@
-dist: xenial
-language: python
-
-notifications:
-  irc:
-    channels:
-      - 'chat.freenode.net#pytest'
-    on_success: change
-    on_failure: change
-    skip_join: true
-  email:
-  - pytest-commit@python.org
-
-install:
-  - pip install -U pip setuptools
-  - pip install tox setuptools_scm
-script: tox
-
-stages:
-  - baseline
-  - test
-  - name: deploy
-    if: repo = pytest-dev/pytest-xdist AND tag IS present
-
-jobs:
-  include:
-    - stage: baseline
-      python: '3.7'
-      env: TOXENV=linting
-      cache:
-        directories:
-          - $HOME/.cache/pre-commit
-    - python: '3.8'
-      env: TOXENV=py38-pytestlatest
-
-    - stage: test
-      python: "3.5"
-      env: TOXENV=py35-pytestlatest
-    - python: "3.6"
-      env: TOXENV=py36-pytestlatest
-    - python: "3.7"
-      env: TOXENV=py37-pytestlatest
-    - python: "3.9-dev"
-      env: TOXENV=py39-pytestlatest
-    - python: "3.8"
-      env: TOXENV=py38-pytestmaster
-    - python: "3.8"
-      env: TOXENV=py38-psutil
-
-    - stage: deploy
-      python: '3.8'
-      env:
-      install: pip install -U setuptools setuptools_scm
-      script: skip
-      deploy:
-        provider: pypi
-        user: ronny
-        distributions: sdist bdist_wheel
-        skip_upload_docs: true
-        password:
-          secure: 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
-        on:
-          tags: true
-          repo: pytest-dev/pytest-xdist