remove var for tmp file

check_ceph_diskfree

@@ -24,8 +24,6 @@
 
 . $(dirname $0)/inc_pluginfunctions
 
-outfile=/tmp/check_ceph_df_out__$$
-
 typeset -i iWarning=0
 typeset -i iCritical=0
 
@@ -82,7 +80,6 @@ then
     ph.abort "UNKNOWN: ceph is not available or no sudo permissions to execute ceph commands."
 fi
 
-rm -f $outfile 2>/dev/null
 isHeader=0
 area=