Set position of tray buttons on primary taskbar only

It seems that secondary taskbars handle try button positioning
correctly. So there is no need for this workaround.

Original change was introduced in 674a486 due to #1232 issue.

Src/StartMenu/StartMenuDLL/StartMenuDLL.cpp

@@ -3179,11 +3179,14 @@ static void RecreateStartButton( size_t taskbarId )
 		RECT rcTask;
 		GetWindowRect(taskBar.taskBar,&rcTask);
 		PostMessage(taskBar.taskBar,WM_SIZE,SIZE_RESTORED,MAKELONG(rcTask.right-rcTask.left,rcTask.bottom-rcTask.top));
-		for (auto btn : taskBar.trayButtons)
+		if (taskBar.taskBar==g_TaskBar)
 		{
-			RECT rc;
-			GetWindowRect(btn,&rc);
-			SetWindowPos(btn,HWND_TOP,rc.left,rc.top,0,0,SWP_NOSIZE|SWP_NOACTIVATE|SWP_NOZORDER);
+			for (auto btn : taskBar.trayButtons)
+			{
+				RECT rc;
+				GetWindowRect(btn,&rc);
+				SetWindowPos(btn,HWND_TOP,rc.left,rc.top,0,0,SWP_NOSIZE|SWP_NOACTIVATE|SWP_NOZORDER);
+			}
 		}
 	}
 }