[Hexagon] Remove unused declaration getLocation

The unused declaration was introduced without a corresponding function
definition in:

  commit f5d07a05bbd41f827ccfa1bed7bfdfbab2be85dc
  Author: Krzysztof Parzyszek <kparzysz@quicinc.com>
  Date:   Mon Sep 7 14:26:48 2020 -0500

diff --git a/llvm/lib/Target/Hexagon/HexagonVectorCombine.cpp b/llvm/lib/Target/Hexagon/HexagonVectorCombine.cpp
index 3f4244e..03bc817 100644 (file)
--- a/llvm/lib/Target/Hexagon/HexagonVectorCombine.cpp
+++ b/llvm/lib/Target/Hexagon/HexagonVectorCombine.cpp
@@ -246,7 +246,6 @@ private:
   };
 
   Align getAlignFromValue(const Value *V) const;
-  std::optional<MemoryLocation> getLocation(const Instruction &In) const;
   std::optional<AddrInfo> getAddrInfo(Instruction &In) const;
   bool isHvx(const AddrInfo &AI) const;
   // This function is only used for assertions at the moment.