pcbnew: Clean up switch statement in launcher

pcbnew/pcbnew.cpp

@@ -99,18 +99,12 @@ static struct IFACE : public KIFACE_I
         }
 
         case FRAME_PCB_MODULE_EDITOR:
+            return new FOOTPRINT_EDIT_FRAME( aKiway, aParent,
+                                             EDA_DRAW_PANEL_GAL::GAL_TYPE_UNKNOWN );
+
         case FRAME_PCB_MODULE_VIEWER:
         case FRAME_PCB_MODULE_VIEWER_MODAL:
-        {
-            switch( aClassId )
-            {
-            case FRAME_PCB_MODULE_EDITOR:
-                return new FOOTPRINT_EDIT_FRAME( aKiway, aParent, EDA_DRAW_PANEL_GAL::GAL_TYPE_UNKNOWN );
-            case FRAME_PCB_MODULE_VIEWER:
-            case FRAME_PCB_MODULE_VIEWER_MODAL:
-                return new FOOTPRINT_VIEWER_FRAME( aKiway, aParent, FRAME_T( aClassId ) );
-            }
-        }
+            return new FOOTPRINT_VIEWER_FRAME( aKiway, aParent, FRAME_T( aClassId ) );
 
         case FRAME_PCB_FOOTPRINT_WIZARD:
             return new FOOTPRINT_WIZARD_FRAME( aKiway, aParent, FRAME_T( aClassId ) );