Applets: Remove unused header includes

Userland/Applets/Audio/main.cpp

@@ -14,7 +14,6 @@
 #include <LibGUI/Widget.h>
 #include <LibGUI/Window.h>
 #include <LibGfx/Bitmap.h>
-#include <LibGfx/Font.h>
 #include <LibGfx/FontDatabase.h>
 #include <LibGfx/Palette.h>
 

Userland/Applets/DesktopPicker/main.cpp

@@ -6,9 +6,7 @@
 
 #include "DesktopStatusWindow.h"
 #include <LibGUI/Application.h>
-#include <LibGUI/Frame.h>
 #include <LibGUI/Painter.h>
-#include <LibGUI/Window.h>
 #include <LibGUI/WindowManagerServerConnection.h>
 #include <WindowServer/Window.h>
 #include <serenity.h>

Userland/Applets/ResourceGraph/main.cpp

@@ -5,7 +5,6 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include <AK/ByteBuffer.h>
 #include <AK/CircularQueue.h>
 #include <AK/JsonObject.h>
 #include <LibCore/ArgsParser.h>