Remove ability to load symbol maps

This was now mostly unused except by thread creation, which used a
symbol of the entrypoint, if available, to name the thread.

src/citra_qt/main.cpp

@@ -38,7 +38,6 @@
 #include "common/scm_rev.h"
 #include "common/scope_exit.h"
 #include "common/string_util.h"
-#include "core/arm/disassembler/load_symbol_map.h"
 #include "core/core.h"
 #include "core/file_sys/archive_source_sd_savedata.h"
 #include "core/gdbstub/gdbstub.h"
@@ -253,8 +252,6 @@ void GMainWindow::ConnectWidgetEvents() {
 void GMainWindow::ConnectMenuEvents() {
     // File
     connect(ui.action_Load_File, &QAction::triggered, this, &GMainWindow::OnMenuLoadFile);
-    connect(ui.action_Load_Symbol_Map, &QAction::triggered, this,
-            &GMainWindow::OnMenuLoadSymbolMap);
     connect(ui.action_Select_Game_List_Root, &QAction::triggered, this,
             &GMainWindow::OnMenuSelectGameListRoot);
     connect(ui.action_Exit, &QAction::triggered, this, &QMainWindow::close);
@@ -506,16 +503,6 @@ void GMainWindow::OnMenuLoadFile() {
     }
 }
 
-void GMainWindow::OnMenuLoadSymbolMap() {
-    QString filename = QFileDialog::getOpenFileName(
-        this, tr("Load Symbol Map"), UISettings::values.symbols_path, tr("Symbol Map (*.*)"));
-    if (!filename.isEmpty()) {
-        UISettings::values.symbols_path = QFileInfo(filename).path();
-
-        LoadSymbolMap(filename.toStdString());
-    }
-}
-
 void GMainWindow::OnMenuSelectGameListRoot() {
     QString dir_path = QFileDialog::getExistingDirectory(this, tr("Select Directory"));
     if (!dir_path.isEmpty()) {

src/citra_qt/main.h

@@ -116,7 +116,6 @@ private slots:
     void OnGameListLoadFile(QString game_path);
     void OnGameListOpenSaveFolder(u64 program_id);
     void OnMenuLoadFile();
-    void OnMenuLoadSymbolMap();
     /// Called whenever a user selects the "File->Select Game List Root" menu item
     void OnMenuSelectGameListRoot();
     void OnMenuRecentFile();

src/citra_qt/main.ui

@@ -58,7 +58,6 @@
      </property>
     </widget>
     <addaction name="action_Load_File"/>
-    <addaction name="action_Load_Symbol_Map"/>
     <addaction name="separator"/>
     <addaction name="action_Select_Game_List_Root"/>
     <addaction name="menu_recent_files"/>