Remove (almost) all references to pRenderer (#651)

Remove all references to pRenderer, except from the DebugDraw and LyShine Gems that are still being updated.

Code/Sandbox/Editor/Controls/ReflectedPropertyControl/PropertyGenericCtrl.cpp

@@ -26,7 +26,6 @@
 #include <CryCommon/ILocalizationManager.h>
 
 // Editor
-#include "ShadersDialog.h"
 #include "SelectLightAnimationDialog.h"
 #include "SelectSequenceDialog.h"
 #include "SelectEAXPresetDlg.h"
@@ -78,16 +77,6 @@ void GenericPopupPropertyEditor::SetPropertyType(PropertyType type)
     m_propertyType = type;
 }
 
-void ShaderPropertyEditor::onEditClicked()
-{
-    CShadersDialog cShaders(GetValue());
-    if (cShaders.exec() == QDialog::Accepted)
-    {
-        SetValue(cShaders.GetSelection());
-    }
-
-}
-
 void ReverbPresetPropertyEditor::onEditClicked()
 {
     CSelectEAXPresetDlg PresetDlg(this);