virNWFilterBindingDefForNet: Remove superfluous gotos

Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>

src/conf/domain_nwfilter.c

@@ -61,12 +61,9 @@ virNWFilterBindingDefForNet(const char *vmname,
 
     if (net->filterparams &&
         virNWFilterHashTablePutAll(net->filterparams, ret->filterparams) < 0)
-        goto error;
+        return NULL;
 
     return g_steal_pointer(&ret);
-
- error:
-    return NULL;
 }