sys: Remove $FreeBSD$: one-line .c patternRemove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/
nfsmb: Remove unused devclass argument to DRIVER_MODULE.
Remove unused smbus_devclass.
nfsmb: clean up empty lines in .c and .h files
Move amdsmb and nfsmb from dev/pci to their own device directory.