message: Remove unused variable from ClangASTContext
diff: @@ -5533,7 +5533,6 @@ GetDynamicArrayInfo(ClangASTContext &ast, SymbolFile *sym_file,
  const ExecutionContext *exe_ctx) {
  if (qual_type->isIncompleteArrayType())
  if (auto *metadata = ast.GetMetadata(qual_type.getAsOpaquePtr()))
  - if (auto *dwarf_parser = ast.GetDWARFParser())
  return sym_file->GetDynamicArrayInfoForUID(metadata->GetUserID(),
  exe_ctx);
  return llvm::None;
  