[clang] [Driver] Remove "-android" from compiler-rt library names for legacy LLVM_ENABLE_PER_TARGET_RUNTIME_DIR=off (PR #81044)

[Fangrui Song via cfe-commits]

MaskRay wrote:

Thanks for the response, so it seems that we need to keep this for a while.

https://github.com/llvm/llvm-project/pull/81044