[clang-tools-extra] [clangd][modules] Remove the options that is for gcc, make modules work for clangd when using gcc (PR #200001)

[Aleksandr Platonov via cfe-commits]

ArcsinX wrote:

> At least I want to make every thing ok without extra configs.. These opinion will make command fail, not just warning. So I think it will be better to remove them the first time. It may be quite annoying to the same config every projects..

In general I don't think it's a big problem. Many projects has `.clang-tidy` config inside, so `.clang` config can also be placed into your project repo.
If you want the same clangd config for all your projects, you can use user config (more info can be found here https://clangd.llvm.org/config#files)


https://github.com/llvm/llvm-project/pull/200001