diff --git a/llvm/docs/WritingAnLLVMBackend.rst b/llvm/docs/WritingAnLLVMBackend.rst
index 88641816d0ef1..c270164444b4b 100644
--- a/llvm/docs/WritingAnLLVMBackend.rst
+++ b/llvm/docs/WritingAnLLVMBackend.rst
@@ -216,7 +216,6 @@ simply return a class member.
       return &InstrInfo.getRegisterInfo();
     }
     virtual const DataLayout *getDataLayout() const { return &DataLayout; }
-    static unsigned getModuleMatchQuality(const Module &M);
 
     // Pass Pipeline Configuration
     virtual bool addInstSelector(PassManagerBase &PM, bool Fast);
diff --git a/llvm/lib/Target/Hexagon/HexagonTargetMachine.h b/llvm/lib/Target/Hexagon/HexagonTargetMachine.h
index 1818697476dd9..208b47d765c73 100644
--- a/llvm/lib/Target/Hexagon/HexagonTargetMachine.h
+++ b/llvm/lib/Target/Hexagon/HexagonTargetMachine.h
@@ -36,8 +36,6 @@ class HexagonTargetMachine : public LLVMTargetMachine {
   ~HexagonTargetMachine() override;
   const HexagonSubtarget *getSubtargetImpl(const Function &F) const override;
 
-  static unsigned getModuleMatchQuality(const Module &M);
-
   void registerPassBuilderCallbacks(PassBuilder &PB) override;
   TargetPassConfig *createPassConfig(PassManagerBase &PM) override;
   TargetTransformInfo getTargetTransformInfo(const Function &F) const override;