- remove unneeded loglevel manipulation in journal_dirty_metadata()

- remove crud which was acidentally added to blkmtd.c

- remove unused vars in mxser.c (Vinay K Nallamothu <vinay-rc@naturesoft.net>)

- PF_LESS_THROTTLE was using the wrong bit (Joe Korty <joe.korty@ccur.com>)

- unused var in cyclades.c ("Krishnakumar. R" <krishnakumar@naturesoft.net>)