Is it possible to disable Google Voice Search headset control in 4.1 Jelly Bean?

I flashed my Samsung Galaxy S i9000 with the RemICS-JB 3.0 ROM, and now long-press on my headset is hard-coded to start Google Voice Search, which doesn't interest me. I'd much rather have long-press be available to other apps (I used it as "rewind" in my podcast player). Is it possible to disable this hard-coded headset control, or disable Voice Search entirely? There isn't a separate app for it, and I can't seem to disable the Google Search app.