Bug 18936: (follow-up) More fixes

Previous "More fixes" patch added a debugging statement, not needed.

Signed-off-by: Joonas Kylmälä <joonas.kylmala@helsinki.fi>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>

Koha/CirculationRules.pm

@@ -183,9 +183,8 @@ sub get_effective_rule {
     my $itemtype     = $params->{itemtype};
     my $branchcode   = $params->{branchcode};
 
-    my @c = caller;
     Koha::Exceptions::MissingParameter->throw(
-        "Required parameter 'rule_name' missing" . "@c")
+        "Required parameter 'rule_name' missing")
       unless $rule_name;
 
     for my $v ( $branchcode, $categorycode, $itemtype ) {