Revert "Fixed l2mapgen "prod" field population."

This reverts commit 90db202fb610461f3703eafd9abe3b8aa9c2d81e.
Revert "Fixed l2mapgen "prod" field population."

This reverts commit 623157634b3a9b4adae953a9bae44c22a6eabba7.
reverted changes for mapgen guis