Yes, if you’re using the Cloud version, we can enable some trial features which will give you real time usage of any flags - and you can remove flags that are no longer being used. Typically if you’re using feature flags for a/b testing, you’ll want to run the test for two weeks or so, and then when you call the test, part of that process is to remove the flag and implement/remove the feature for all. There are some other best practices that we’d be happy to meet your team and discuss.
https://calendly.com/growthbook