gtkbin: Remove the silliest code on earth
gtkbin: Remove the silliest code on earth

What is this bin doing with all these crazy deltas? Company does:

<Company> that can safely be removed
<Company> in general, code that isn't obvious can either be understood
<Company> with a bit of thinking or it can be removed
<Company> if in doubt, go for the 2nd of those :)

Most GtkBin subclasses override this strange garbage anyway, so it's
not like this code is ever *run*, per se. Just make it proxy directly
to the child, and hope nothing goes wrong.

Lyude/gtk-,ebassi/gtk,ebassi/gtk,Lyude/gtk-,grubersjoe/adwaita,grubersjoe/adwaita,alexlarsson/gtk,jessevdk/gtk,davidgumberg/gtk,ebassi/gtk,davidt/gtk,msteinert/gtk,msteinert/gtk,grubersjoe/adwaita,Distrotech/gtk2,Distrotech/gtk2,alexlarsson/gtk,alexlarsson/gtk,bratsche/gtk-,grubersjoe/adwaita,alexlarsson/gtk,jigpu/gtk,jessevdk/gtk,Lyude/gtk-,Sidnioulz/SandboxGtk,jadahl/gtk,jigpu/gtk,jessevdk/gtk,msteinert/gtk,jigpu/gtk,ahodesuka/gtk,jessevdk/gtk,jadahl/gtk,Adamovskiy/gtk,msteinert/gtk,ebassi/gtk,davidgumberg/gtk,jadahl/gtk,jadahl/gtk,bratsche/gtk-,jigpu/gtk,davidt/gtk,alexlarsson/gtk,davidt/gtk,jessevdk/gtk,chergert/gtk,msteinert/gtk,Adamovskiy/gtk,Adamovskiy/gtk,Sidnioulz/SandboxGtk,jigpu/gtk,msteinert/gtk,ahodesuka/gtk,davidt/gtk,davidgumberg/gtk,ahodesuka/gtk,Adamovskiy/gtk,Adamovskiy/gtk,chergert/gtk,bratsche/gtk-,grubersjoe/adwaita,jigpu/gtk,Sidnioulz/SandboxGtk,chergert/gtk,Adamovskiy/gtk,Lyude/gtk-,jadahl/gtk,jessevdk/gtk,ahodesuka/gtk,alexlarsson/gtk,jadahl/gtk,chergert/gtk,jadahl/gtk,chergert/gtk,Sidnioulz/SandboxGtk,davidgumberg/gtk,davidgumberg/gtk,davidgumberg/gtk,Adamovskiy/gtk,alexlarsson/gtk,Distrotech/gtk2,Lyude/gtk-,Adamovskiy/gtk,jadahl/gtk,Sidnioulz/SandboxGtk,jessevdk/gtk,ebassi/gtk,bratsche/gtk-,Sidnioulz/SandboxGtk,Lyude/gtk-,bratsche/gtk-,ahodesuka/gtk,grubersjoe/adwaita,chergert/gtk,jigpu/gtk,grubersjoe/adwaita,alexlarsson/gtk,Distrotech/gtk2,chergert/gtk,ahodesuka/gtk,Lyude/gtk-,Distrotech/gtk2,davidt/gtk,ahodesuka/gtk,grubersjoe/adwaita,davidgumberg/gtk,davidgumberg/gtk,chergert/gtk,Lyude/gtk-,jigpu/gtk,ebassi/gtk,ahodesuka/gtk,bratsche/gtk-,Distrotech/gtk2,davidt/gtk