Remove another stale assert()
Remove another stale assert()

fatalerror!  Why did you disable asserts!

thestinger/vte-ng,saitoha/vte-sixel,jessevdk/vte,saitoha/vte-sixel,jessevdk/vte,rvu95/vte,pjm0616/vte,pjm0616/vte,rvu95/vte,rvu95/vte,thestinger/vte-ng,asivokon/vte-fx,aligo/vte,pjm0616/vte,asivokon/vte-fx,thestinger/vte-ng,asivokon/vte-fx,aligo/vte,gloob/vte-copy,gloob/vte-copy,asivokon/vte-fx,gloob/vte-copy,flaxandteal/gasket-vte,flaxandteal/gasket-vte,jessevdk/vte,saitoha/vte-sixel,aligo/vte,flaxandteal/gasket-vte,flaxandteal/gasket-vte,rvu95/vte,jessevdk/vte