How can I disable at-spi-bus-launcher

I have a laptop that hangs up on shutdown saying that at-spi-bus-launcher is still running.

Since I have no use for at-spi-bus-launcher anyway, I would like to get rid of it, but attempting to remove the at-spi2-core rpm wants to remove 99% of my desktop as well.

The only way that I can see to get rid of it is to make /usr/libexec/at-spi-bus-launcher non-executable, but that's a pretty horrible hack.

Can I permanently disable it without resorting to that?