fix: remove verbose error logging from job deletion

- Remove error_log messages from DatabaseQueue::delete() method
- Job not found during deletion is normal and expected behavior
- Prevents spam in logs when jobs are already deleted or never existed
- Fixes E2E test logs showing repeated 'Failed to delete job' messages

Author: Алексей Тихомиров

src/Queue/DatabaseQueue.php

@@ -73,22 +73,11 @@ public function delete(string $jobId): bool
                 unset($jobs[$jobId]);
                 $this->saveQueue($queue, $jobs);
 
-                error_log(sprintf(
-                    'WP Queue: Deleted job %s from queue %s. Remaining: %d',
-                    $jobId,
-                    $queue,
-                    count($jobs),
-                ));
-
                 return true;
             }
         }
 
-        error_log(sprintf(
-            'WP Queue: Failed to delete job %s - not found in any queue',
-            $jobId,
-        ));
-
+        // Job not found - this is normal if it was already deleted or never existed
         return false;
     }