fixed the clearing issue

Metube/.env.example

@@ -28,7 +28,4 @@ METUBE_PORT=8081
 # --- Download Behavior ---
 
 # Delete the file from disk when trashed in the UI (true/false)
-METUBE_DELETE_FILE_ON_TRASHCAN=true
-
-# Seconds after completion before a finished download is removed from the queue (3600 = 1 hour, 0 = disabled)
-METUBE_CLEAR_COMPLETED_AFTER=3600
+METUBE_DELETE_FILE_ON_TRASHCAN=true