[llvm] ARM: Remove check for isAAPCS_ABI when enabling various aeabi calls (PR #152108)

[Matt Arsenault via llvm-commits]

arsenm wrote:

> Hmm,wait, doesn't the GNU side set up the GNU calls?

I don't really see any path in here I would call the "GNU side", but this condition doesn't touch any __gnu calls. [The only references to those are below under `else if !TT.isOSBinFormatMachO())`](https://github.com/llvm/llvm-project/blob/0cddf803a3250f8b1589fb73bfcee65e9b8d6559/llvm/lib/Target/ARM/ARMISelLowering.cpp#L747)

https://github.com/llvm/llvm-project/pull/152108