remove unnecessary make command

Makefile

@@ -314,11 +314,6 @@ test-ibc: docker-build
 test:
 	@$(GO_BIN) test $$($(GO_BIN) list ./... | grep -v 'contrib' | grep -v 'tests/e2e')
 
-coverage:
-	@mkdir -p out
-	@$(GO_BIN) test -v -coverprofile=out/coverage.out  $$($(GO_BIN) list ./... | grep -v 'contrib' | grep -v 'tests/e2e')
-	@$(GO_BIN) tool cover -html="out/coverage.out"
-
 # Run cli integration tests
 # `-p 4` to use 4 cores, `-tags cli_test` to tell $(GO_BIN) not to ignore the cli package
 # These tests use the `kvd` or `kvcli` binaries in the build dir, or in `$BUILDDIR` if that env var is set.