Revert "The ===FOOD=== heading at OLON's no longer costs 500 silver to select."

This reverts commit 045b21c666c975721abdc3c039a2acaebac145fd.

Because those placeholders have a cost for a reason. Without them
they always jump to the top of the menu. WIth the prices they always move
with the items they're acting as a header for.