[llvm][NFC] Remove deprecated InterleaveGroup::getAlignment() function.

Differential Revision: https://reviews.llvm.org/D101907
diff --git a/llvm/include/llvm/Analysis/VectorUtils.h b/llvm/include/llvm/Analysis/VectorUtils.h
index 181c42c..42310fa 100644
--- a/llvm/include/llvm/Analysis/VectorUtils.h
+++ b/llvm/include/llvm/Analysis/VectorUtils.h
@@ -602,10 +602,6 @@
 
   bool isReverse() const { return Reverse; }
   uint32_t getFactor() const { return Factor; }
-  LLVM_ATTRIBUTE_DEPRECATED(uint32_t getAlignment() const,
-                            "Use getAlign instead.") {
-    return Alignment.value();
-  }
   Align getAlign() const { return Alignment; }
   uint32_t getNumMembers() const { return Members.size(); }