Removing travis

Signed-off-by: Chris Patterson <chrispat@github.com>

.travis.yml

@@ -1,56 +0,0 @@
-dist: bionic
-sudo: required
-# setup travis so that we can run containers for integration tests
-services:
-  - docker
-
-jobs:
-  include:
-   - arch: amd64
-   - arch: s390x
-
-language: go
-
-go:
-  - "1.14.x"
-
-go_import_path: github.com/docker/distribution
-
-addons:
-  apt:
-    packages:
-      - python-minimal
-
-
-env:
-  - TRAVIS_GOOS=linux DOCKER_BUILDTAGS="include_oss include_gcs" TRAVIS_CGO_ENABLED=1
-
-before_install:
-  - uname -r
-  - sudo apt-get -q update
-
-install:
-  - cd /tmp && go get -u github.com/vbatts/git-validation
-    # TODO: Add enforcement of license
-    # - go get -u github.com/kunalkushwaha/ltag
-  - cd $TRAVIS_BUILD_DIR
-
-script:
-  - export GOOS=$TRAVIS_GOOS
-  - export CGO_ENABLED=$TRAVIS_CGO_ENABLED
-  - DCO_VERBOSITY=-q script/validate/dco
-  - GOOS=linux GO111MODULE=on script/setup/install-dev-tools
-  - script/validate/vendor
-  - go build -i .
-  - make check
-  - make build
-  - make binaries
-    # Currently takes too long
-    #- if [ "$GOOS" = "linux" ]; then make test-race ; fi
-  - if [ "$GOOS" = "linux" ]; then make coverage ; fi
-
-after_success:
-  - bash <(curl -s https://codecov.io/bash) -F linux
-
-before_deploy:
-    # Run tests with storage driver configurations