diff --git a/lldb/include/lldb/Target/DynamicRegisterInfo.h b/lldb/include/lldb/Target/DynamicRegisterInfo.h
index 5fd0389e3e82c..99cf5e237edcb 100644
--- a/lldb/include/lldb/Target/DynamicRegisterInfo.h
+++ b/lldb/include/lldb/Target/DynamicRegisterInfo.h
@@ -89,8 +89,6 @@ class DynamicRegisterInfo {
   typedef std::vector<reg_num_collection> set_reg_num_collection;
   typedef std::vector<lldb_private::ConstString> name_collection;
   typedef std::map<uint32_t, reg_num_collection> reg_to_regs_map;
-  typedef std::vector<uint8_t> dwarf_opcode;
-  typedef std::map<uint32_t, dwarf_opcode> dynamic_reg_size_map;
 
   llvm::Expected<uint32_t> ByteOffsetFromSlice(uint32_t index,
                                                llvm::StringRef slice_str,