a11y: Remove bogus code
a11y: Remove bogus code

There is no weak pointer there, so just remove this code.

jessevdk/vte,flaxandteal/gasket-vte,rvu95/vte,flaxandteal/gasket-vte,flaxandteal/gasket-vte,jessevdk/vte,thestinger/vte-ng,thestinger/vte-ng,flaxandteal/gasket-vte,saitoha/vte-sixel,rvu95/vte,saitoha/vte-sixel,saitoha/vte-sixel,jessevdk/vte,jessevdk/vte,thestinger/vte-ng,rvu95/vte,rvu95/vte