Remove obsolete Travis CI configuration

.travis.yml

@@ -1,107 +0,0 @@
-# This does Travis CI builds on Linux and OS X, and on a tag build,
-# also produces an OS X package.
-os:
-  - linux
-  - osx
-
-cache:
-  - apt
-
-language: cpp
-
-# Use the Ubuntu 14.04 build environment for Linux.
-sudo: required
-dist: trusty
-
-# Travis' default is broken, select current latest.
-osx_image: xcode11.4
-
-# Linux dependencies
-addons:
-  apt:
-    packages:
-    # For build.
-    - protobuf-compiler
-    - libprotobuf-dev
-    - libutempter-dev
-    # Test suite needs these.
-    - tmux
-    - perl
-  homebrew:
-    packages:
-    # For build.
-    - protobuf
-    # Test suite.
-    - tmux
-
-before_install:
-  # Get full repo for `git describe`
-  - git fetch --tags --unshallow
-  # OS X dependencies.  The package_deps step takes 15 minutes or so
-  # and is fairly quiet, so wrap it in travis_wait to keep it from
-  # being killed.
-  - |
-    if test osx = "${TRAVIS_OS_NAME}"; then
-      macosx/brew-deps.sh install &&
-        if test -n "${TRAVIS_TAG}"; then
-          travis_wait 60 macosx/brew-deps.sh package_deps
-        else
-          : macosx/brew-deps.sh deps
-        fi
-    fi
-
-# Use before_script to report the build configuration.
-before_script:
-  # Describe this system.
-  - id
-  - env
-  - git describe --long
-  - |
-    if test osx = "${TRAVIS_OS_NAME}" && test -n "${TRAVIS_TAG}"; then
-      rm -rf macosx/build-report "macosx/${TRAVIS_TAG}-osx-build-report.tbz" &&
-        mkdir macosx/build-report &&
-        cd macosx/build-report &&
-        ../brew-deps.sh describe &&
-        ../osx-xcode.sh describe &&
-        tar -cjf "../${TRAVIS_TAG}-osx-build-report.tbz" . &&
-        cd -
-    fi
-
-# 'make distcheck', and OS X package build on tag builds.
-script:
-  - |
-    if test osx = "${TRAVIS_OS_NAME}"; then
-      sysctl hw.ncpu
-    fi
-  - ./autogen.sh
-  - ./configure --enable-compile-warnings=error --enable-examples
-  - make distcheck VERBOSE=1 V=1
-  # Build OS X package for tags.
-  - |
-    if test osx = "${TRAVIS_OS_NAME}" && test -n "${TRAVIS_TAG}"; then
-      cd macosx &&
-        env ZERO_AR_DATE=1 MACOSX_DEPLOYMENT_TARGET=10.12 ./build.sh &&
-        shasum -a 256 "${TRAVIS_TAG}.pkg" "${TRAVIS_TAG}-osx-build-report.tbz" &&
-        cd -
-    fi
-# Deploy the OS X package and its build report to a GitHub release.
-deploy:
-  provider: releases
-  api_key:
-    secure: noQsHb/ycLHcyS7VwgpPfsH1KNaKd1YyjGwAobxIPTbeyP6fPk8hHiTW3rvgOyXTh4bs0SuZ5iMBsTYPJ1sgDSsICLZvIoZeD7F9tdkvlJCKKKNq4y+vJVS6kHOajD9nLV+pcexIB74QazBDnXscKNsrulk5rcD3rj75P1QKYXs=
-  # Save build artifacts.
-  skip_cleanup: true
-  # Using a shell variable in deploy.file is undocumented but seems to work.
-  file:
-    - macosx/${TRAVIS_TAG}.pkg
-    - macosx/${TRAVIS_TAG}-osx-build-report.tbz
-  on:
-    repo: mobile-shell/mosh
-    tags: true
-    condition: ${TRAVIS_OS_NAME} = osx
-
-notifications:
-  irc:
-    channels:
-      - "chat.freenode.net#mosh"
-    skip_join: true