Drop some MSVC warning supression flags because
Drop some MSVC warning supression flags because

* It wasn't clear which targets these were supposed to apply to
* add_definitions() is not meant to be used in this way

ronen/Halide,mcanthony/Halide,psuriana/Halide,fengzhyuan/Halide,dan-tull/Halide,adasworks/Halide,myrtleTree33/Halide,fengzhyuan/Halide,damienfir/Halide,mcanthony/Halide,ronen/Halide,ronen/Halide,smxlong/Halide,delcypher/Halide,jiawen/Halide,fengzhyuan/Halide,lglucin/Halide,smxlong/Halide,tdenniston/Halide,kenkuang1213/Halide,fengzhyuan/Halide,tdenniston/Halide,fengzhyuan/Halide,dan-tull/Halide,rodrigob/Halide,damienfir/Halide,delcypher/Halide,psuriana/Halide,dougkwan/Halide,mcanthony/Halide,aam/Halide,jiawen/Halide,ayanazmat/Halide,tdenniston/Halide,dan-tull/Halide,psuriana/Halide,jiawen/Halide,rodrigob/Halide,smxlong/Halide,lglucin/Halide,damienfir/Halide,ayanazmat/Halide,adasworks/Halide,dougkwan/Halide,ayanazmat/Halide,ronen/Halide,adasworks/Halide,adasworks/Halide,smxlong/Halide,dan-tull/Halide,smxlong/Halide,kenkuang1213/Halide,ayanazmat/Halide,dan-tull/Halide,dougkwan/Halide,damienfir/Halide,kgnk/Halide,mcanthony/Halide,ayanazmat/Halide,lglucin/Halide,aam/Halide,myrtleTree33/Halide,delcypher/Halide,kgnk/Halide,jiawen/Halide,rodrigob/Halide,kgnk/Halide,myrtleTree33/Halide,kenkuang1213/Halide,aam/Halide,aam/Halide,rodrigob/Halide,rodrigob/Halide,jiawen/Halide,mcanthony/Halide,dougkwan/Halide,ronen/Halide,kenkuang1213/Halide,dougkwan/Halide,lglucin/Halide,mcanthony/Halide,ronen/Halide,adasworks/Halide,delcypher/Halide,dan-tull/Halide,psuriana/Halide,tdenniston/Halide,myrtleTree33/Halide,delcypher/Halide,kgnk/Halide,rodrigob/Halide,fengzhyuan/Halide,kgnk/Halide,ayanazmat/Halide,delcypher/Halide,rodrigob/Halide,mcanthony/Halide,kenkuang1213/Halide,fengzhyuan/Halide,dougkwan/Halide,kenkuang1213/Halide,mcanthony/Halide,tdenniston/Halide,adasworks/Halide,tdenniston/Halide,jiawen/Halide,smxlong/Halide,lglucin/Halide,psuriana/Halide,damienfir/Halide,aam/Halide,fengzhyuan/Halide,damienfir/Halide,ayanazmat/Halide,tdenniston/Halide,dan-tull/Halide,tdenniston/Halide,adasworks/Halide,aam/Halide,adasworks/Halide,smxlong/Halide,delcypher/Halide,lglucin/Halide,kgnk/Halide,kenkuang1213/Halide,psuriana/Halide,jiawen/Halide,ayanazmat/Halide,ronen/Halide,myrtleTree33/Halide,delcypher/Halide,myrtleTree33/Halide,kenkuang1213/Halide,kgnk/Halide,ronen/Halide,myrtleTree33/Halide,dougkwan/Halide,damienfir/Halide,dan-tull/Halide,aam/Halide,damienfir/Halide,lglucin/Halide,smxlong/Halide,rodrigob/Halide,myrtleTree33/Halide,psuriana/Halide,dougkwan/Halide,kgnk/Halide