Removed unused CI configs.

.appveyor.yml

@@ -1,33 +0,0 @@
-version: 'v2.2.1-dev.{build}'
-
-build: off
-branches:
-  only:
-    - master
-    - develop
-
-environment:
-  matrix:
-    - PYTHON: "C:\\Python35"
-    - PYTHON: "C:\\Python35-x64"
-    - PYTHON: "C:\\Python36"
-    - PYTHON: "C:\\Python36-x64"
-    - PYTHON: "C:\\Python37"
-    - PYTHON: "C:\\Python37-x64"
-    - PYTHON: "C:\\Python38"
-    - PYTHON: "C:\\Python38-x64"
-matrix:
-  fast_finish: true
-
-cache:
-  - '%LOCALAPPDATA%\pip\Cache'
-  - .downloads -> .appveyor.yml
-
-install:
-  - "cmd /c .\\test\\tools\\ci-win.cmd install"
-
-test_script:
-  - "cmd /c .\\test\\tools\\ci-win.cmd test"
-
-on_failure:
-  - ps: get-content .tox\*\log\*

.travis.yml

@@ -1,25 +0,0 @@
-language: python
-
-arch:
-  - arm64
-  - amd64
-  - ppc64le
-
-python:
-  - "3.6"
-  - "3.7"
-  - "3.8"
-  - "3.9"
-  - "3.10"
-
-cache:
-  - pip
-
-install:
-  - pip install -U pip tox tox-travis coveralls codecov
-
-script:
-  - tox
-
-after_success:
-  - codecov