chore: remove redis scripts & readme

Author: alexluong

Makefile

@@ -113,7 +113,13 @@ down/test/rediscluster:
 	@echo "Redis cluster test environment stopped."
 
 test/setup:
-	bash scripts/test-setup-info.sh
+	@echo "To setup the test environment, run the following command:"
+	@echo "$$ make up/test"
+	@echo "$$ make up/azure"
+	@echo ""
+	@echo "Before running the tests, make sure to:"
+	@echo "$$ export TESTINFRA=1 TESTAZURE=1"
+	@echo ""
 
 test:
 	go test $(TEST) $(TESTARGS)