Remove go tool cover in make test-unit-cover (cosmos#792)

Author: Eric-Warehime

Makefile

@@ -169,8 +169,6 @@ test-unit-cover: run-tests
 	@tail -n +2 evmd/coverage_evmd.txt >> coverage.txt && rm evmd/coverage_evmd.txt
 	@echo "🧹 Filtering ignored files from coverage.txt..."
 	@grep -v -E '/cmd/|/client/|/proto/|/testutil/|/mocks/|/test_.*\.go:|\.pb\.go:|\.pb\.gw\.go:|/x/[^/]+/module\.go:|/scripts/|/ibc/testing/|/version/|\.md:|\.pulsar\.go:' coverage.txt > tmp_coverage.txt && mv tmp_coverage.txt coverage.txt
-	@echo "📊 Coverage summary:"
-	@go tool cover -func=coverage.txt
 
 test: test-unit