pass1.c, pass2.c, problem.c, problem.h: Fix bug introduced by

pass1.c, pass2.c, problem.c, problem.h: Fix bug introduced by
	Andreas's symlink code; check_blocks() was unconditionally testing
	inode_bad_map without checking to see if it existed first.  Fixed
	problem a different way; we now no longer check inode_bad_map at all,
	since the file might not get deleted in pass 2 anyway.  We move the
	large file feature reconciliation code to to e2fsck_pass2(), and in
	deallocate_inode() in pass2.c, we decrement the large files counter if
	we're about to delete a large file.