Cleanup issues reported by clang.

libevmjit/Optimizer.cpp

@@ -36,8 +36,6 @@ class LowerEVMPass : public llvm::BasicBlockPass
 {
 	static char ID;
 
-	bool m_mulFuncNeeded = false;
-
 public:
 	LowerEVMPass():
 		llvm::BasicBlockPass(ID)
@@ -45,6 +43,7 @@ public:
 
 	virtual bool runOnBasicBlock(llvm::BasicBlock& _bb) override;
 
+	using llvm::BasicBlockPass::doFinalization;
 	virtual bool doFinalization(llvm::Module& _module) override;
 };
 

libevmjit/Stack.h

@@ -27,12 +27,7 @@ private:
 	llvm::Function* getGetFunc();
 
 	RuntimeManager& m_runtimeManager;
-
-	llvm::Function* m_pop = nullptr;
-	llvm::Function* m_push = nullptr;
 	llvm::Function* m_get = nullptr;
-	llvm::Function* m_set = nullptr;
-
 	Array m_stack;
 };