[clang] [Driver] Remove a bunch of unnecessary REQUIRES constraints (PR #94055)

[Vladimir Vereschaka via cfe-commits]

vvereschaka wrote:

>FTR, when I say I could not reproduce on X86 Windows, exactly what I did is build on an X86 Windows host but include only the AArch64 target. The test passed.

got it, thank you. I took a closer look to the failures and I found that most of them (except Clang::hexagon-toolchain-elf.c) have failed because of --sysroot
```
...
ld.lld "--sysroot=c:/buildbot/fs/jetson-agx-ubuntu" "--sysroot=c:/buildbot/fs/jetson-agx-ubuntu" ...
```
does not look good.

https://github.com/llvm/llvm-project/pull/94055