RIP: travis CI

It takes ~30 minutes to schedule a release build that takes just
over 50 minutes to run.  Travis kills builds that take 50 minutes,
so this is completely useless.

Meanwhile: azure is able to build and deploy all platforms within
the first 15-20 minutes.

.travis.yml

@@ -1,65 +0,0 @@
-language: rust
-sudo: required
-
-cache: cargo
-
-rust:
-  - stable
-  - beta
-
-os:
-  - osx
-  - linux
-  - windows
-
-dist: xenial
-
-matrix:
-  allow_failures:
-    - rust: beta
-    - os: windows
-
-before_script:
-  - rustup component add rustfmt-preview
-
-script:
-  - bash ./ci/travis-run.sh
-
-addons:
-  apt:
-    packages:
-      - fakeroot
-      - binutils-dev
-      - cmake
-      - gcc
-      - xorg-dev
-      - libcurl4-openssl-dev
-      - libdw-dev
-      - libegl1-mesa-dev
-      - libelf-dev
-      - libfontconfig1-dev
-      - libiberty-dev
-      - libxcb-ewmh-dev
-      - libxcb-icccm4-dev
-      - libxcb-keysyms1-dev
-      - libxcb-xkb-dev
-      - libxkbcommon-dev
-      - libxkbcommon-x11-dev
-      - ragel
-
-before_deploy:
-  - bash ci/deploy.sh
-
-deploy:
-  provider: releases
-  api_key:
-    secure: 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
-  file_glob: true
-  file:
-    - WezTerm*.zip
-    - wezterm*.deb
-  skip_cleanup: true
-  on:
-    repo: wez/wezterm
-    tags: true
-    rust: stable

ci/travis-run.sh

@@ -1,16 +0,0 @@
-#!/bin/bash
-set -ex
-
-RELEASE_FLAG=""
-
-if [[ "$TRAVIS_RUST_VERSION" == "stable" ]] ; then
-  cargo fmt --all -- --check
-fi
-
-if [[ "$TRAVIS_TAG" != "" ]] ; then
-  RELEASE_FLAG="--release"
-fi
-
-cargo build $RELEASE_FLAG
-cargo test $RELEASE_FLAG --all
-