[clang-tidy] Remove unused variable (NFC)

/llvm-project/clang-tools-extra/clang-tidy/bugprone/NondeterministicPointerIterationOrderCheck.cpp:60:29:
error: unused variable 'AlgoName' [-Werror,-Wunused-variable]
      const llvm::StringRef AlgoName = ClassTemplate->getName();
                            ^
1 error generated.

clang-tools-extra/clang-tidy/bugprone/NondeterministicPointerIterationOrderCheck.cpp

@@ -57,7 +57,6 @@ void NondeterministicPointerIterationOrderCheck::check(
                 "recorddecl")) {
       const TemplateArgumentList &TemplateArgs =
           ClassTemplate->getTemplateArgs();
-      const llvm::StringRef AlgoName = ClassTemplate->getName();
       const bool IsAlgoArgPointer =
           TemplateArgs[0].getAsType()->isPointerType();