remove golint dependency (#866)

Author: Anaethelion

.buildkite/Dockerfile

@@ -7,7 +7,6 @@ ARG  VERSION=1-alpine
 FROM golang:${VERSION}
 
 RUN apk add --no-cache --quiet make curl git jq unzip tree && \
-    go install golang.org/x/lint/golint@latest && \
     go install gotest.tools/gotestsum@latest
 
 VOLUME ["/tmp"]

.ci/Dockerfile

@@ -7,7 +7,6 @@ ARG  VERSION=1-alpine
 FROM golang:${VERSION}
 
 RUN apk add --no-cache --quiet make curl git jq unzip tree && \
-    go install golang.org/x/lint/golint@latest && \
     go install gotest.tools/gotestsum@latest
 
 VOLUME ["/tmp"]

.github/workflows/build.yml

@@ -29,10 +29,5 @@ jobs:
         with: { fetch-depth: 1 }
       - uses: actions/setup-go@v2.1.3
         with: { go-version: '1.x' }
-      - name: Install dependencies
-        run: go install golang.org/x/lint/golint@latest
-        env:
-          GOBIN: ${{ env.GOROOT }}/bin
-        shell: bash
       - run: go version
       - run: make lint

Makefile

@@ -155,7 +155,6 @@ test-coverage:  ## Generate test coverage report
 lint:  ## Run lint on the package
 	@printf "\033[2m→ Running lint...\033[0m\n"
 	go vet github.com/elastic/go-elasticsearch/...
-	go list github.com/elastic/go-elasticsearch/... | 'grep' -v internal | xargs golint -set_exit_status
 	@{ \
 		set -e ; \
 		trap "test -d ../../../.git && git checkout --quiet go.mod" INT TERM EXIT; \