multimedia/cx88: Remove devclass from DRIVER_MODULE on recent main.

[jhb]

Summary

While here, remove DRIVER_MODULE lines for the cardbus driver. These
are not necessary since the cardbus bus driver inherits from the pci
bus driver, so all PCI drivers are already candidates for cardbus
devices.

[jah]

Is the idea here to proactively update the DRIVER_MODULE because the devclass compat shims will be removed in a future version, or was there some build error on 14?

[jhb]

In D35946#816298, @jah wrote:

Is the idea here to proactively update the DRIVER_MODULE because the devclass compat shims will be removed in a future version, or was there some build error on 14?

Yes, I plan to remove the shims in 14. If you look at the stack you can see that all these port reviews are parents of a src patch that removes the shims.