remove unused method ResetOutputFileHandle()

[lawrence_danna]

Summary

ResetOutputFileHandle() isn't being used by anything. Also it's using
FILE*, which is something we should be doing less of. Remove it.

lldb/include/lldb/Interpreter/ScriptInterpreter.h

public:
   const char *GetScriptInterpreterPtyName();
 
   int GetMasterFileDescriptor();
 
   static std::string LanguageToString(lldb::ScriptLanguage language);
 
   static lldb::ScriptLanguage StringToLanguage(const llvm::StringRef &string);
 
-  virtual void ResetOutputFileHandle(FILE *new_fh) {} // By default, do nothing.
-
   lldb::ScriptLanguage GetLanguage() { return m_script_lang; }
 
 protected:
   Debugger &m_debugger;
   lldb::ScriptLanguage m_script_lang;
 };
 
 } // namespace lldb_private
 
 #endif // liblldb_ScriptInterpreter_h_

lldb/source/Core/Debugger.cpp

if (m_output_file_sp)
     m_output_file_sp->GetFile().SetStream(fh, tranfer_ownership);
   else
     m_output_file_sp = std::make_shared<StreamFile>(fh, tranfer_ownership);
 
   File &out_file = m_output_file_sp->GetFile();
   if (!out_file.IsValid())
     out_file.SetStream(stdout, false);
 
-  // Do not create the ScriptInterpreter just for setting the output file
-  // handle as the constructor will know how to do the right thing on its own.
-  if (ScriptInterpreter *script_interpreter =
-          GetScriptInterpreter(/*can_create=*/false))
-    script_interpreter->ResetOutputFileHandle(fh);
 }
 
 void Debugger::SetErrorFileHandle(FILE *fh, bool tranfer_ownership) {
   if (m_error_file_sp)
     m_error_file_sp->GetFile().SetStream(fh, tranfer_ownership);
   else
     m_error_file_sp = std::make_shared<StreamFile>(fh, tranfer_ownership);
 

lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPython.cpp

void ScriptInterpreterPythonImpl::IOHandlerInputComplete(IOHandler &io_handler,
   }
 }
 
 lldb::ScriptInterpreterSP
 ScriptInterpreterPythonImpl::CreateInstance(Debugger &debugger) {
   return std::make_shared<ScriptInterpreterPythonImpl>(debugger);
 }
 
-void ScriptInterpreterPythonImpl::ResetOutputFileHandle(FILE *fh) {}
-
 void ScriptInterpreterPythonImpl::LeaveSession() {
   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_SCRIPT));
   if (log)
     log->PutCString("ScriptInterpreterPythonImpl::LeaveSession()");
 
   // Unset the LLDB global variables.
   PyRun_SimpleString("lldb.debugger = None; lldb.target = None; lldb.process "
                      "= None; lldb.thread = None; lldb.frame = None");

lldb/source/Plugins/ScriptInterpreter/Python/ScriptInterpreterPythonImpl.h

public:
   Status SetBreakpointCommandCallback(
       BreakpointOptions *bp_options,
       std::unique_ptr<BreakpointOptions::CommandData> &data_up) override;
 
   /// Set a one-liner as the callback for the watchpoint.
   void SetWatchpointCommandCallback(WatchpointOptions *wp_options,
                                     const char *oneliner) override;
 
-  void ResetOutputFileHandle(FILE *new_fh) override;
-
   const char *GetDictionaryName() { return m_dictionary_name.c_str(); }
 
   PyThreadState *GetThreadState() { return m_command_thread_state; }
 
   void SetThreadState(PyThreadState *s) {
     if (s)
       m_command_thread_state = s;
   }