CI: remove unused travis config

travis.yml.bak

@@ -1,29 +0,0 @@
-language: cpp
-
-matrix:
-  include:
-    - os: linux
-      dist: trusty
-      sudo: required
-    - os: osx
-      osx_image: xcode8.2
-
-before_install:
-  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew update ; fi
-  - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then sudo apt-get -qq update; fi
-  - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then sudo apt-get install -y groff; fi
-script:
-  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then ./build-osx.sh; fi
-  - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then ./build-linux-64.sh; fi
-deploy:
-  provider: releases
-  file_glob: true
-  skip_cleanup: true
-  api_key:
-    secure: EBxXqVjU7AGBOHbf9MWmmlEX7wpJwi8faLbUjKB19M5MzGSKdvSHTnRTFWLt80+1S1qr/PlZUxeyl+xGGQ1PFHvlALGUGVveVJ/5MGHP+aRhPJgvQ0A15KWQrba4Yy5rbw+DlAOznUmmn+cmnjeEdT3J9eLF73GKYtEWB6qT2E8=
-  file:
-    - "build-osx/*.zip"
-    - "build/*.zip"
-  on:
-    repo: ericwa/ericw-tools
-    tags: true