[llvm] [SLP][modularisation][NFC] Move pointer/stride helpers to SLPMemoryUtils (PR #221786)

[Madhur Amilkanthwar via llvm-commits]

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@@ -42,7 +42,6 @@ bool arePointersCompatible(Value *Ptr1, Value *Ptr2,
            getSameOpcode({GEP1->getOperand(1), GEP2->getOperand(1)}, TLI)));
 }
 
-/// Calculates minimal alignment as a common alignment.
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madhur13490 wrote:

Sorry, messed up.

https://github.com/llvm/llvm-project/pull/221786