Remove duplicate valid value check in gdscript_tokenizer.cpp.
Remove duplicate valid value check in gdscript_tokenizer.cpp.

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