[AudioSystem] ACE bug fix: Ctrl-S doesn't work correctly when a level is loaded. (#6411)

Signed-off-by: Maxim Ivanov <imginimg@gmail.com>

Gems/AudioSystem/Code/Source/Editor/AudioControlsEditorMainWindow.ui

@@ -154,6 +154,9 @@
    <property name="text">
     <string>Save All</string>
    </property>
+   <property name="shortcut">
+    <string>Ctrl+S</string>
+   </property>
   </action>
   <action name="actionReload">
    <property name="icon">

Gems/AudioSystem/Code/Source/Editor/AudioControlsEditorWindow.cpp

@@ -121,27 +121,6 @@ namespace AudioControls
         }
     }
 
-    //-------------------------------------------------------------------------------------------//
-    void CAudioControlsEditorWindow::keyPressEvent(QKeyEvent* pEvent)
-    {
-        if (pEvent->key() == Qt::Key_S && pEvent->modifiers() == Qt::ControlModifier)
-        {
-            Save();
-        }
-        else if (pEvent->key() == Qt::Key_Z && (pEvent->modifiers() & Qt::ControlModifier))
-        {
-            if (pEvent->modifiers() & Qt::ShiftModifier)
-            {
-                GetIEditor()->Redo();
-            }
-            else
-            {
-                GetIEditor()->Undo();
-            }
-        }
-        QMainWindow::keyPressEvent(pEvent);
-    }
-
     //-------------------------------------------------------------------------------------------//
     void CAudioControlsEditorWindow::closeEvent(QCloseEvent* pEvent)
     {

Gems/AudioSystem/Code/Source/Editor/AudioControlsEditorWindow.h

@@ -63,7 +63,6 @@ namespace AudioControls
         void Update();
 
     protected:
-        void keyPressEvent(QKeyEvent* pEvent) override;
         void closeEvent(QCloseEvent* pEvent) override;
 
     private: