Some udbg.c cleanups:

- remove some old comments
- clean up formatting
- remove unused udbg_puthex and udbg_printSP
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>