Remove BEADM MOUNT as mount points are displayed by BEADM LIST [-a] now.

beadm

@@ -42,8 +42,7 @@ __usage() {
   echo "  ${NAME} create beName@snapshot"
   echo "  ${NAME} destroy [-F] beName"
   echo "  ${NAME} destroy [-F] beName@snapshot"
-  echo "  ${NAME} list"
-  echo "  ${NAME} mount"
+  echo "  ${NAME} list [-a]"
   echo "  ${NAME} mount beName [mountpoint]"
   echo "  ${NAME} umount [-f] beName"
   echo "  ${NAME} unmount [-f] beName"
@@ -564,26 +563,7 @@ EOF
     ;;
 
   (mount) # -------------------------------------------------------------------
-    if [ ${#} -eq 1 ]
-    then
-      zfs list -H -o name -d 1 -r ${POOL}/ROOT \
-        | grep "${POOL}/ROOT/" \
-        | while read NAME
-          do
-            NAME=${NAME##*/}
-            if mount | grep -q -E "^${POOL}/ROOT/${NAME}" 2> /dev/null
-            then
-              echo ${NAME}
-              mount \
-                | grep -E "^${POOL}/ROOT/${NAME}" \
-                | awk '{print $1 " " $3}' \
-                | column -t \
-                | awk '{print "  " $0}'
-              echo
-            fi
-          done
-      exit 0
-    elif [ ${#} -eq 2 ]
+    if [ ${#} -eq 2 ]
     then
       TARGET=$( mktemp -d /tmp/tmp.XXXXXX )
     elif [ ${#} -eq 3 ]