User checkpoint: Configure Replit to run development server in background.

.replit

@@ -43,6 +43,3 @@ task = "packager.installForAll"
 task = "shell.exec"
 args = "npm run dev"
 waitForPort = 5000
-
-[processes]
-redis = { command = "redis-server --port 6379 --bind 0.0.0.0", start_at = true }