Remove travis

.travis.yml

@@ -1,44 +0,0 @@
-language: python
-cache: pip
-dist: xenial
-
-matrix:
-  include:
-    - python: 3.6
-      before_install:
-        - sudo add-apt-repository ppa:mc3man/xerus-media -y
-        - sudo apt-get update -qq
-        - sudo apt-get install -qq ubuntu-restricted-extras ffmpeg
-      before_script:
-        ffmpeg --help
-    - python: 3.7
-      before_install:
-        - sudo add-apt-repository ppa:mc3man/xerus-media -y
-        - sudo apt-get update -qq
-        - sudo apt-get install -qq ubuntu-restricted-extras ffmpeg
-      before_script:
-        ffmpeg --help
-    - python: 3.8
-      before_install:
-        - sudo add-apt-repository ppa:mc3man/xerus-media -y
-        - sudo apt-get update -qq
-        - sudo apt-get install -qq ubuntu-restricted-extras ffmpeg
-      before_script:
-        ffmpeg --help
-    - python: 3.8
-      env: TOXENV=doc
-    - python: 3.8
-      env: TOXENV=check
-  allow_failures:
-    - env: TOXENV=check
-
-install: pip install -U tox-travis
-
-script: tox -- -v
-
-after_success:
-  - pip install codecov
-  - codecov
-
-notifications:
-    irc: "chat.freenode.net#sigal"