xfsdump: remove obsolete code for handling mountpoint inodes

The S_IFMNT file type was never supported in Linux, remove the last
vestiges.

Signed-off-by: Anthony Iliopoulos <ailiop@suse.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Eric Sandeen <sandeen@sandeen.net>

diff --git a/doc/xfsdump.html b/doc/xfsdump.html
index d4d157f..9d06129 100644
--- a/doc/xfsdump.html
+++ b/doc/xfsdump.html
@@ -102,9 +102,8 @@
 <li>named pipes (S_FIFO)
 <li>XENIX named pipes (S_IFNAM) 
 </ul>
-but not mount point types (S_IFMNT).
-It also does not dump files from <i>/var/xfsdump</i> which
-is where the xfsdump inventory is located.
+It does not dump files from <i>/var/xfsdump</i> which is where the
+xfsdump inventory is located.
 Other data which is stored:
 <ul>
 <li> file attributes (stored in stat data) of owner, group, permissions,
diff --git a/dump/content.c b/dump/content.c
index 30232d4..7637fe8 100644
--- a/dump/content.c
+++ b/dump/content.c
@@ -3913,9 +3913,6 @@
 			contextp->cc_stat_lastino = statp->bs_ino;
 		}
 		return RV_OK;
-	/* not yet implemented
-	case S_IFMNT:
-	 */
 	}
 
 	if (rv == RV_OK