Call minimum_size_changed() in PopupMenu::remove_item()
Call minimum_size_changed() in PopupMenu::remove_item()

When removing an item from a PopupMenu we need to update the control's
size cache otherwise the size of the PopupMenu itself lags behind by 1
item size. Meaning the PopupMenu will remain too large.

MarianoGnu/godot,groud/godot,groud/godot,firefly2442/godot,Faless/godot,Valentactive/godot,pkowal1982/godot,firefly2442/godot,josempans/godot,MarianoGnu/godot,akien-mga/godot,godotengine/godot,ZuBsPaCe/godot,Zylann/godot,ex/godot,josempans/godot,vnen/godot,mcanders/godot,mcanders/godot,Zylann/godot,honix/godot,josempans/godot,Paulloz/godot,groud/godot,Valentactive/godot,Paulloz/godot,okamstudio/godot,MarianoGnu/godot,Paulloz/godot,Valentactive/godot,vkbsb/godot,vkbsb/godot,josempans/godot,mcanders/godot,akien-mga/godot,pkowal1982/godot,okamstudio/godot,pkowal1982/godot,vkbsb/godot,josempans/godot,NateWardawg/godot,vkbsb/godot,honix/godot,sanikoyes/godot,NateWardawg/godot,godotengine/godot,Valentactive/godot,NateWardawg/godot,sanikoyes/godot,MarianoGnu/godot,Zylann/godot,Zylann/godot,Shockblast/godot,josempans/godot,ZuBsPaCe/godot,godotengine/godot,vnen/godot,sanikoyes/godot,honix/godot,pkowal1982/godot,ex/godot,akien-mga/godot,vkbsb/godot,ex/godot,Valentactive/godot,ex/godot,Zylann/godot,ex/godot,ZuBsPaCe/godot,vnen/godot,NateWardawg/godot,DmitriySalnikov/godot,NateWardawg/godot,ex/godot,honix/godot,groud/godot,Shockblast/godot,honix/godot,sanikoyes/godot,okamstudio/godot,mcanders/godot,okamstudio/godot,NateWardawg/godot,BastiaanOlij/godot,Zylann/godot,Faless/godot,guilhermefelipecgs/godot,pkowal1982/godot,guilhermefelipecgs/godot,godotengine/godot,Shockblast/godot,okamstudio/godot,Faless/godot,josempans/godot,Zylann/godot,Paulloz/godot,Shockblast/godot,godotengine/godot,firefly2442/godot,godotengine/godot,Faless/godot,mcanders/godot,vnen/godot,ZuBsPaCe/godot,pkowal1982/godot,guilhermefelipecgs/godot,ZuBsPaCe/godot,Shockblast/godot,vnen/godot,NateWardawg/godot,okamstudio/godot,vkbsb/godot,guilhermefelipecgs/godot,vnen/godot,NateWardawg/godot,firefly2442/godot,BastiaanOlij/godot,okamstudio/godot,BastiaanOlij/godot,akien-mga/godot,firefly2442/godot,NateWardawg/godot,ZuBsPaCe/godot,Faless/godot,honix/godot,MarianoGnu/godot,akien-mga/godot,vnen/godot,josempans/godot,DmitriySalnikov/godot,sanikoyes/godot,groud/godot,akien-mga/godot,Valentactive/godot,BastiaanOlij/godot,ex/godot,Shockblast/godot,BastiaanOlij/godot,Shockblast/godot,pkowal1982/godot,MarianoGnu/godot,Paulloz/godot,ZuBsPaCe/godot,Paulloz/godot,vkbsb/godot,sanikoyes/godot,ex/godot,Valentactive/godot,MarianoGnu/godot,ZuBsPaCe/godot,Zylann/godot,firefly2442/godot,akien-mga/godot,guilhermefelipecgs/godot,godotengine/godot,guilhermefelipecgs/godot,DmitriySalnikov/godot,DmitriySalnikov/godot,vkbsb/godot,BastiaanOlij/godot,firefly2442/godot,DmitriySalnikov/godot,Faless/godot,guilhermefelipecgs/godot,okamstudio/godot,okamstudio/godot,akien-mga/godot,guilhermefelipecgs/godot,Shockblast/godot,groud/godot,DmitriySalnikov/godot,sanikoyes/godot,firefly2442/godot,DmitriySalnikov/godot,Valentactive/godot,mcanders/godot,BastiaanOlij/godot,BastiaanOlij/godot,vnen/godot,Paulloz/godot,Faless/godot,pkowal1982/godot,Faless/godot,okamstudio/godot,sanikoyes/godot,godotengine/godot,MarianoGnu/godot