Remove travis config

.travis.yml

@@ -1,65 +0,0 @@
-language: python
-os: linux
-jobs:
-  include:
-# docs build
-    - name: Docs (py36)
-      python: 3.6
-      install: make init
-      script: make docs
-      after_script: []
-# linux
-    - python: 2.7
-    - python: 3.5
-    - python: 3.6
-    - python: 3.7
-    - python: 3.8
-# OSX
-    - name: OSX Python 2.7
-      os: osx
-      language: shell
-      before_install:
-        - cp -fv `which python2` `which python` || true
-        - cp -fv `which pip2` `which pip` || true
-        - pip install --upgrade pip
-      after_script: []
-    - name: OSX Python 3.7
-      os: osx
-      language: shell
-      before_install:
-        - cp -fv `which python3` `which python` || true
-        - cp -fv `which pip3` `which pip` || true
-        - pip install --upgrade pip
-      after_script: []
-# Windows
-    - name: Win Python 3.6
-      language: shell
-      os: windows
-      env: PATH=/c/Python36:/c/Python36/Scripts:$PATH
-      before_install:
-        - choco install python --version 3.6.8
-        - python -m pip install --upgrade pip
-      after_script: []
-    - name: Win Python 3.7
-      language: shell
-      os: windows
-      env: PATH=/c/Python37:/c/Python37/Scripts:$PATH
-      before_install:
-        - choco install python --version 3.7.4
-        - python -m pip install --upgrade pip
-      after_script: []
-    - name: Win Python 3.8
-      language: shell
-      os: windows
-      env: PATH=/c/Python38:/c/Python38/Scripts:$PATH
-      before_install:
-        - choco install python --version 3.8.2
-        - python -m pip install --upgrade pip
-      after_script: []
-install:
-    - pip install -r requirements.txt
-    - pip install coveralls
-script:
-    - PYTHONHASHSEED=0 pytest --cov=steam tests
-after_script:
-    - coveralls