chore: clean up go tool cover

Author: jpayne3506

Makefile

@@ -885,7 +885,7 @@ test-all: test-azure-ipam test-azure-ip-masq-merger test-azure-iptables-monitor
 
 test-main:
 	go test -mod=readonly -buildvcs=false -tags "unit" --skip 'TestE2E*' -race -covermode atomic -coverprofile=coverage-main.out $(COVER_PKG)/...
-	go tool -modfile=$(TOOLS_GO_MOD) cover -func=coverage-main.out
+	go tool cover -func=coverage-main.out
 
 test-integration: ## run all integration tests.
 	AZURE_IPAM_VERSION=$(AZURE_IPAM_VERSION) \
@@ -916,13 +916,13 @@ test-extended-cyclonus: ## run the cyclonus test for npm.
 	cd ..
 
 test-azure-ipam: ## run the unit test for azure-ipam
-	cd $(AZURE_IPAM_DIR) && go test -race -covermode atomic -coverprofile=../coverage-azure-ipam.out && go tool cover -modfile=$(TOOLS_GO_MOD) -func=../coverage-azure-ipam.out
+	cd $(AZURE_IPAM_DIR) && go test -race -covermode atomic -coverprofile=../coverage-azure-ipam.out && go tool cover  -func=../coverage-azure-ipam.out
 
 test-azure-ip-masq-merger: ## run the unit test for azure-ip-masq-merger
-	cd $(AZURE_IP_MASQ_MERGER_DIR) && go test -race -covermode atomic -coverprofile=../coverage-azure-ip-masq-merger.out && go tool cover -modfile=$(TOOLS_GO_MOD) -func=../coverage-azure-ip-masq-merger.out
+	cd $(AZURE_IP_MASQ_MERGER_DIR) && go test -race -covermode atomic -coverprofile=../coverage-azure-ip-masq-merger.out && go tool cover  -func=../coverage-azure-ip-masq-merger.out
 
 test-azure-iptables-monitor: ## run the unit test for azure-iptables-monitor
-	cd $(AZURE_IPTABLES_MONITOR_DIR) && go test -race -covermode atomic -coverprofile=../coverage-azure-iptables-monitor.out && go tool cover -modfile=$(TOOLS_GO_MOD) -func=../coverage-azure-iptables-monitor.out
+	cd $(AZURE_IPTABLES_MONITOR_DIR) && go test -race -covermode atomic -coverprofile=../coverage-azure-iptables-monitor.out && go tool cover  -func=../coverage-azure-iptables-monitor.out
 
 kind:
 	kind create cluster --config ./test/kind/kind.yaml