conf: obj: remove extra empty line

Originally present in virDomainDefSetMetadata it got copied to
virNetworkDefSetMetadata too.

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>

src/conf/domain_conf.c

@@ -30219,7 +30219,6 @@ virDomainDefSetMetadata(virDomainDef *def,
 
     case VIR_DOMAIN_METADATA_ELEMENT:
         if (metadata) {
-
             /* parse and modify the xml from the user */
             if (!(doc = virXMLParseStringCtxt(metadata, _("(metadata_xml)"), NULL)))
                 return -1;

src/conf/virnetworkobj.c

@@ -2083,7 +2083,6 @@ virNetworkDefSetMetadata(virNetworkDef *def,
 
     case VIR_NETWORK_METADATA_ELEMENT:
         if (metadata) {
-
             /* parse and modify the xml from the user */
             if (!(doc = virXMLParseStringCtxt(metadata, _("(metadata_xml)"), NULL)))
                 return -1;