remove .travis.yml

Signed-off-by: Benjamin Wang <wachao@vmware.com>

.travis.yml

@@ -1,51 +0,0 @@
-language: go
-go_import_path: go.etcd.io/etcd/v3
-
-sudo: required
-
-services: docker
-
-go:
-  - "1.17.13"
-  - tip
-
-notifications:
-  on_success: never
-  on_failure: never
-
-env:
-  matrix:
-    - TARGET=linux-amd64-coverage
-    - TARGET=linux-amd64-fmt-unit-go-tip-2-cpu
-
-matrix:
-  fast_finish: true
-  allow_failures:
-    - go: "1.17.13"
-      env: TARGET=linux-amd64-coverage
-    - go: tip
-      env: TARGET=linux-amd64-fmt-unit-go-tip-2-cpu
-  exclude:
-    - go: tip
-      env: TARGET=linux-amd64-coverage
-    - go: "1.17.13"
-      env: TARGET=linux-amd64-fmt-unit-go-tip-2-cpu
-
-before_install:
-  - if [[ $TRAVIS_GO_VERSION == 1.* ]]; then docker pull gcr.io/etcd-development/etcd-test:go${TRAVIS_GO_VERSION}; fi
-
-install:
-  - date
-
-script:
-  - date
-  - echo "TRAVIS_GO_VERSION=${TRAVIS_GO_VERSION}"
-  - >
-    case "${TARGET}" in
-      linux-amd64-coverage)
-        sudo HOST_TMP_DIR=/tmp TEST_OPTS="VERBOSE='1'" make docker-test-coverage
-        ;;
-      linux-amd64-fmt-unit-go-tip-2-cpu)
-        GOARCH=amd64 PASSES='fmt unit' CPU='2' RACE='false' ./test.sh -p=2
-        ;;
-    esac