xfs: remove unused structure members & simple typedefs

Remove some unused typedef'd simple types, and some unused
structure members.

Signed-off-by: Eric Sandeen <[e-mail]>
Reviewed-by: Darrick J. Wong <[e-mail]>
Signed-off-by: Darrick J. Wong <[e-mail]>

fs/xfs/libxfs/xfs_types.h

···
 typedef uint32_t	xfs_rtword_t;	/* word type for bitmap manipulations */
 
 typedef int64_t		xfs_lsn_t;	/* log sequence number */
-typedef int32_t		xfs_tid_t;	/* transaction identifier */
 
 typedef uint32_t	xfs_dablk_t;	/* dir/attr block number (in file) */
 typedef uint32_t	xfs_dahash_t;	/* dir/attr hash value */
···
 typedef uint64_t	xfs_filblks_t;	/* number of blocks in a file */
 
 typedef int64_t		xfs_srtblock_t;	/* signed version of xfs_rtblock_t */
-typedef int64_t		xfs_sfiloff_t;	/* signed block number in a file */
 
 /*
  * New verifiers will return the instruction address of the failing check.

fs/xfs/xfs_log_priv.h

···
 	/* The following field are used for debugging; need to hold icloglock */
 #ifdef DEBUG
 	void			*l_iclog_bak[XLOG_MAX_ICLOGS];
-	/* log record crc error injection factor */
-	uint32_t		l_badcrc_factor;
 #endif
 	/* log recovery lsn tracking (for buffer submission */
 	xfs_lsn_t		l_recovery_lsn;

fs/xfs/xfs_mount.h

···
 
 typedef struct xfs_mount {
 	struct super_block	*m_super;
-	xfs_tid_t		m_tid;		/* next unused tid for fs */
 
 	/*
 	 * Bitsets of per-fs metadata that have been checked and/or are sick.