xfs: don't reset the "inode core" in xfs_iread

We have the exact same memset in xfs_inode_alloc, which is always called
just before xfs_iread.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>

fs/xfs/libxfs/xfs_inode_buf.c

@@ -631,8 +631,6 @@ xfs_iread(
 	if ((iget_flags & XFS_IGET_CREATE) &&
 	    xfs_sb_version_hascrc(&mp->m_sb) &&
 	    !(mp->m_flags & XFS_MOUNT_IKEEP)) {
-		/* initialise the on-disk inode core */
-		memset(&ip->i_d, 0, sizeof(ip->i_d));
 		VFS_I(ip)->i_generation = prandom_u32();
 		ip->i_d.di_version = 3;
 		return 0;