DragonFlyBSD/src e913106sys/vfs/msdosfs msdosfs_conv.c

sys/vfs/msdosfs: Remove seemingly unneeded mbnambuf code

originally from 3435d5778808adf9c89a4f9f0e34010b4dc8888f in 2009.
Sync with what FreeBSD does.
Also sync minor styles with FreeBSD.
DeltaFile
+12-3sys/vfs/msdosfs/msdosfs_conv.c
+12-31 files

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