remove 'dep' dependency

Linus Arver · Linus Arver · commit 78b85dd200d4 · 2021-06-19T09:40:12.000-07:00
'dep' has been deprecated since 2020. See golang/go#38158.
diff --git a/Makefile b/Makefile
@@ -30,6 +30,3 @@ test:
 clean:
 	$(GOCLEAN)
 	rm -f $(BINARY_PATH_PLY)
-deps:
-	$(GOGET) github.com/golang/dep/cmd/dep
-	dep ensure
