Fix drush performance command.

It seems our internal changes have made the invoke method no longer work. I believe the
results are still comparable

On 4.6 we recorded on T127133 between 308 & 333 imports per minute.

I just ran on staging now & got between 345 & 411 per minute. Notably the
345 was the first run & presumably some mysql caching kicked in after that
as subsequent runs were faster.

command is
drush profile_donation 1000 "4.7.31 with dao patch"

I did not see a speed difference with or without civicrm/civicrm-core#11615
(once mysql was 'warmed up') although there was a memory usage difference 77.2 MB used vs 83.97MB
without the destruct patch.

Change-Id: I13228690c7d225963442386e26355c47842ca631

sites/all/modules/queue2civicrm/queue_performance.drush.inc

@@ -85,7 +85,7 @@ function drush_queue_performance_profile_donation($limit, $context) {
 
     $now = strtotime('now');
     foreach ($messages as $msg) {
-      module_invoke('queue2civicrm', 'import', $msg);
+      wmf_civicrm_contribution_message_import($msg);
     }
     $timeTaken = strtotime('now') - $now;
     drush_print(t("Processed @limit messages in $timeTaken second(s)", array('@limit' => $limit)));