genext2fs: update to CVS rev 1.118

See http://genext2fs.cvs.sourceforge.net/viewvc/genext2fs/genext2fs/genext2fs.c?view=log


for details.

Numerous bugfixes, large file and filesystem support, rev 1 filesystems,
volume id support, block size, ..

And drop unneeded patches while we're at it.

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>