Can't turn off IntelliJ Inspector "Unused Declaration"

I am running IntelliJ IDEA 13.1.4 Ultimate under a 30 day trial.

In classes that are not currently being called, I have many many public methods, and I do not want to be searched for "unused declaration" during checks.

I turned it off by unchecking the checkbox in the inspections settings and re-running the inspector, but it still finds these issues. I re-enabled it and disabled it again and re-started the inspector mandate time. I tried restarting intellij too.

Is there another setting that I need to disable in order to disable them, or is this a bug? Can anyone disable this with this version?