chore: remove unused release target

Author: ldez

Makefile

@@ -75,10 +75,6 @@ snapshot: .goreleaser.yml tools/goreleaser
 $(BINARY): FORCE
 	go build -o $@ ./cmd/golangci-lint
 
-tools/goreleaser: export GOFLAGS = -mod=readonly
-tools/goreleaser: tools/go.mod tools/go.sum
-	cd tools && go build github.com/goreleaser/goreleaser
-
 # TODO: migrate to docs/
 tools/svg-term: tools/package.json tools/package-lock.json
 	cd tools && npm ci