remove modcache

Makefile

@@ -15,7 +15,7 @@ default: save
 clean:
 	rm -v $(D)/*.tzst
 
-build: deps/modcache.tar
+build:
 	docker build \
 		-t $(RN):$(GITREV) \
 		-t $(RN):latest \
@@ -42,6 +42,3 @@ push:
 	docker push $(RN):$(GITREV)
 	docker push $(RN):latest
 	docker push $(RN):$(shell git branch --show-current)
-
-deps/modcache.tar:
-	cd $(shell go env GOMODCACHE)/ && tar -c . | pv > $(PWD)/deps/modcache.tar