Clean DisplayServerWindows and add missing guards
Clean DisplayServerWindows and add missing guards

Faless/godot,DmitriySalnikov/godot,Valentactive/godot,Valentactive/godot,Zylann/godot,BastiaanOlij/godot,Valentactive/godot,Valentactive/godot,vnen/godot,guilhermefelipecgs/godot,ZuBsPaCe/godot,sanikoyes/godot,josempans/godot,pkowal1982/godot,guilhermefelipecgs/godot,firefly2442/godot,guilhermefelipecgs/godot,akien-mga/godot,Valentactive/godot,guilhermefelipecgs/godot,vkbsb/godot,DmitriySalnikov/godot,ZuBsPaCe/godot,godotengine/godot,guilhermefelipecgs/godot,Zylann/godot,vkbsb/godot,Faless/godot,vnen/godot,Zylann/godot,pkowal1982/godot,sanikoyes/godot,ZuBsPaCe/godot,firefly2442/godot,firefly2442/godot,ZuBsPaCe/godot,vkbsb/godot,vkbsb/godot,sanikoyes/godot,akien-mga/godot,BastiaanOlij/godot,pkowal1982/godot,josempans/godot,DmitriySalnikov/godot,vnen/godot,pkowal1982/godot,josempans/godot,BastiaanOlij/godot,Faless/godot,BastiaanOlij/godot,pkowal1982/godot,akien-mga/godot,Faless/godot,Zylann/godot,BastiaanOlij/godot,Faless/godot,Valentactive/godot,josempans/godot,vkbsb/godot,godotengine/godot,vnen/godot,vnen/godot,pkowal1982/godot,akien-mga/godot,ZuBsPaCe/godot,BastiaanOlij/godot,pkowal1982/godot,josempans/godot,Shockblast/godot,vnen/godot,josempans/godot,Zylann/godot,godotengine/godot,Zylann/godot,firefly2442/godot,Shockblast/godot,vkbsb/godot,sanikoyes/godot,godotengine/godot,Shockblast/godot,sanikoyes/godot,firefly2442/godot,DmitriySalnikov/godot,firefly2442/godot,akien-mga/godot,Faless/godot,akien-mga/godot,akien-mga/godot,akien-mga/godot,vkbsb/godot,firefly2442/godot,josempans/godot,guilhermefelipecgs/godot,sanikoyes/godot,godotengine/godot,Valentactive/godot,Zylann/godot,Shockblast/godot,Shockblast/godot,ZuBsPaCe/godot,DmitriySalnikov/godot,Shockblast/godot,firefly2442/godot,ZuBsPaCe/godot,sanikoyes/godot,godotengine/godot,guilhermefelipecgs/godot,godotengine/godot,DmitriySalnikov/godot,vnen/godot,godotengine/godot,ZuBsPaCe/godot,josempans/godot,Zylann/godot,DmitriySalnikov/godot,Valentactive/godot,BastiaanOlij/godot,guilhermefelipecgs/godot,vkbsb/godot,Shockblast/godot,vnen/godot,BastiaanOlij/godot,Faless/godot,Faless/godot,sanikoyes/godot,Shockblast/godot,pkowal1982/godot