Drop golint which does not work anymore with current Golang versions

Dockerfile.dapper

@@ -153,9 +153,6 @@ RUN echo "... Downloading  ${!KERNEL_URL}"; \
 RUN curl -L https://storage.googleapis.com/golang/go${GO_VERSION}.linux-${HOST_ARCH}.tar.gz | tar -xzf - -C /usr/local && \
     go get github.com/burmilla/trash
 
-# Install golint
-RUN go get golang.org/x/lint/golint
-
 # Install Host Docker
 RUN curl -fL ${!BUILD_DOCKER_URL} > /usr/bin/docker && \
     chmod +x /usr/bin/docker

scripts/validate

@@ -9,12 +9,6 @@ PACKAGES=". $(find -name '*.go' | xargs -I{} dirname {} |  cut -f2 -d/ | sort -u
 
 echo Running: go vet
 go vet ${PACKAGES}
-echo Running: golint
-for i in ${PACKAGES}; do
-    if [ -n "$(golint $i | grep -v 'should have comment.*or be unexported' | tee /dev/stderr)" ]; then
-        failed=true
-    fi
-done
 test -z "$failed"
 echo Running: go fmt
 test -z "$(go fmt ${PACKAGES} | tee /dev/stderr)"