.travis.yml: delete

Replaced by GitHub workflows and GCB-based CI.

Windows/MacOS testing is covered with .github/workflows/test-long.yml

Change-Id: I817304050c988d4d60dd596a36dd73764cb108ec
Reviewed-on: https://go-review.googlesource.com/c/vscode-go/+/239717
Reviewed-by: Rebecca Stambler <rstambler@golang.org>
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index c6761bb..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,61 +0,0 @@
-language: go
-
-dist: bionic
-
-go:
-  - 1.13.x
-  - 1.14.x
-  - tip
-
-git:
-  depth: 1
-
-matrix:
-  allow_failures:
-    - go: tip
-
-os:
-  - osx
-  - linux
-
-before_install:
-  # Call xvfb directly on linux runs and give it time to start
-  - if [[ $TRAVIS_OS_NAME == "linux" ]]; then
-    export DISPLAY=:99.0;
-    Xvfb :99 -screen 0 1024x768x24 > /dev/null 2>&1 &
-    sleep 3;
-    sudo apt-get update && sudo apt-get install -y libsecret-1-0;
-    fi
-
-install:
-  - TRAVIS_NODE_VERSION="12";
-  # Clear out whatever version of NVM Travis has as it is old.
-  - rm -rf ~/.nvm;
-    # Grab NVM.
-  - git clone https://github.com/creationix/nvm.git ~/.nvm;
-    # Checkout the latest stable tag.
-    # Note that you can just hardcode a preferred version here.
-  - (cd ~/.nvm && git checkout `git describe --abbrev=0 --tags`);
-    # Install the desired version of Node
-  - source ~/.nvm/nvm.sh;
-  - nvm install $TRAVIS_NODE_VERSION;
-  - npm ci
-  - npm run vscode:prepublish
-  - go get -u -v github.com/acroca/go-symbols
-  - go get -u -v github.com/cweill/gotests/...
-  - go get -u -v github.com/davidrjenni/reftools/cmd/fillstruct
-  - go get -u -v github.com/haya14busa/goplay/cmd/goplay
-  - go get -u -v github.com/mdempsky/gocode
-  - go get -u -v github.com/ramya-rao-a/go-outline
-  - go get -u -v github.com/rogpeppe/godef
-  - go get -u -v github.com/sqs/goreturns
-  - go get -u -v github.com/uudashr/gopkgs/v2/cmd/gopkgs
-  - go get -u -v github.com/zmb3/gogetdoc
-  - go get -u -v golang.org/x/lint/golint
-  - go get -u -v golang.org/x/tools/cmd/gorename
-  - GO111MODULE=on go get golang.org/x/tools/gopls
-
-script:
-  - npm run lint
-  - npm run unit-test
-  - npm test --silent