ITS#9598 Do not track olcIncomingConnections in lloadd/test007

Some values we export in cn=monitor are not managed in a single place,
instead, a task exists that gathers a snapshot of the lloadd state and
stores it for monitor consumption. This exposes a race between the test
reading it out and lloadd updating this cached copy. While we still have
to rely on a shell, rather than being intelligent about whether or not
we should emit a readout into search.out or wait and try again (which is
what test004-monitor does), just filter this attribute out.

tests/data/lloadd/test007-monitor.ldif

@@ -1,7 +1,6 @@
 # with first backend
 dn: cn=Load Balancer,cn=Backends,cn=Monitor
 objectClass: olmBalancer
-olmIncomingConnections: 0
 olmOutgoingConnections: 4
 
 dn: cn=Incoming Connections,cn=Load Balancer,cn=Backends,cn=Monitor
@@ -87,7 +86,6 @@ olmFailedOps: 0
 # second backend and a rejected search, paged search (19 times x 1 entry), pwmod
 dn: cn=Load Balancer,cn=Backends,cn=Monitor
 objectClass: olmBalancer
-olmIncomingConnections: 0
 olmOutgoingConnections: 13
 
 dn: cn=Incoming Connections,cn=Load Balancer,cn=Backends,cn=Monitor
@@ -274,7 +272,6 @@ olmFailedOps: 0
 # two runs of modifies (with and without TXN)
 dn: cn=Load Balancer,cn=Backends,cn=Monitor
 objectClass: olmBalancer
-olmIncomingConnections: 0
 olmOutgoingConnections: 13
 
 dn: cn=Incoming Connections,cn=Load Balancer,cn=Backends,cn=Monitor

tests/scripts/lloadd/test007-coherence

@@ -483,7 +483,10 @@ test $KILLSERVERS != no && kill -HUP $KILLPIDS
 LDIF=$DATADIR/lloadd/test007-monitor.ldif
 
 echo "Filtering ldapsearch results..."
-$LDIFFILTER < $SEARCHOUT > $SEARCHFLT
+# For now, we don't make sure olmIncomingConnections is reflective of current
+# state (=no connections open) since olmIncomingConnections can be != 0 for a
+# second after it's closed
+$LDIFFILTER < $SEARCHOUT | grep -v '^olmIncomingConnections:' > $SEARCHFLT
 echo "Filtering original ldif used to create database..."
 $LDIFFILTER < $LDIF | sed \
     -e "s|@URI2@|$URI2|g" \