[llvm] [ARM] Always lower direct calls as direct when the outliner is enabled (PR #66434)

[David Green via llvm-commits]

davemgreen wrote:

Sorry - I managed to run the benchmarks wrong (I was surprised it didn't make any difference).

It turns out this does cause some regressions and appears to be worse than before.

https://github.com/llvm/llvm-project/pull/66434