OSX: Fix linking with osxcross for arm64
OSX: Fix linking with osxcross for arm64

For some reason the `-target` option on the `LINKFLAGS` was causing a weird
issue where osxcross' clang wrapper would attempt using the system `/bin/ld`
instead of the osxcross version (which is Apple's `ld64`).

The error message would be:
```
/bin/ld: unrecognized option '-dynamic'
```

Also removed from `CCFLAGS` for consistency, it seems to work fine with only
`-mmacosx-version-min`.

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