[llvm] [AArch64] Remove all instances of the 'hasSVEorSME' interfaces. (PR #96543)

[Paul Walker via llvm-commits]

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@@ -16235,14 +16238,11 @@ bool AArch64TargetLowering::isLegalInterleavedAccessType(
   UseScalable = false;
 
   if (!VecTy->isScalableTy() && !Subtarget->isNeonAvailable() &&
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paulwalker-arm wrote:

Since you're refactoring this block do you mind changing the `!isScalableTy` to be `isFixedLengthVector`?

https://github.com/llvm/llvm-project/pull/96543