Revert "added forward declaration for all wrapper methods"
Revert "added forward declaration for all wrapper methods"

This reverts commit 51247cab454a8fbb25fe292dc2f314c70f326990.

blue-shell/carbon-gtk,KDE/oxygen-gtk,blue-shell/carbon-gtk,blueshell-next/carbon-gtk,blueshell-next/carbon-gtk,KDE/oxygen-gtk