Revert "CARRY: Add verify-vendoring make target"

This reverts commit 0f3063d.

Author: EmilienM

Makefile

@@ -575,17 +575,6 @@ verify-vendoring: vendor
 		echo "vendored files are out of date, run go mod vendor"; exit 1; \
 	fi
 
-.PHONY: vendor verify-vendoring
-vendor:
-	go mod vendor
-	cd $(TOOLS_DIR); go mod vendor
-
-verify-vendoring: vendor
-	@if !(git diff --quiet HEAD); then \
-		git diff; \
-		echo "vendored files are out of date, run go mod vendor"; exit 1; \
-	fi
-
 .PHONY: compile-e2e
 compile-e2e: ## Test e2e compilation
 	go test -c -o /dev/null -tags=e2e ./test/e2e/suites/conformance