Remove legacy Programmers Notepad project file.

LUFA.pnproj

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-<Project name="LUFA"><Folder name="Demos"><Folder name="Device"><Folder name="ClassDriver"><Folder name="AudioInput"><Folder name="Config"><File path="Demos\Device\ClassDriver\AudioInput\Config\LUFAConfig.h"></File><File path="Demos\Device\ClassDriver\AudioInput\Config\AppConfig.h"></File></Folder><File path="Demos\Device\ClassDriver\AudioInput\AudioInput.c"></File><File path="Demos\Device\ClassDriver\AudioInput\AudioInput.h"></File><File path="Demos\Device\ClassDriver\AudioInput\AudioInput.txt"></File><File path="Demos\Device\ClassDriver\AudioInput\Descriptors.c"></File><File path="Demos\Device\ClassDriver\AudioInput\Descriptors.h"></File><File path="Demos\Device\ClassDriver\AudioInput\Doxygen.conf"></File><File path="Demos\Device\ClassDriver\AudioInput\makefile"></File></Folder><Folder name="AudioOutput"><Folder name="Config"><File path="Demos\Device\ClassDriver\AudioOutput\Config\LUFAConfig.h"></File><File path="Demos\Device\ClassDriver\AudioOutput\Config\AppConfig.h"></File></Folder><File path="Demos\Device\ClassDriver\AudioOutput\AudioOutput.c"></File><File path="Demos\Device\ClassDriver\AudioOutput\AudioOutput.h"></File><File path="Demos\Device\ClassDriver\AudioOutput\AudioOutput.txt"></File><File path="Demos\Device\ClassDriver\AudioOutput\Descriptors.c"></File><File path="Demos\Device\ClassDriver\AudioOutput\Descriptors.h"></File><File path="Demos\Device\ClassDriver\AudioOutput\Doxygen.conf"></File><File path="Demos\Device\ClassDriver\AudioOutput\makefile"></File></Folder><Folder name="DualVirtualSerial"><Folder name="Config"><File path="Demos\Device\ClassDriver\DualVirtualSerial\Config\LUFAConfig.h"></File></Folder><File path="Demos\Device\ClassDriver\DualVirtualSerial\Descriptors.c"></File><File path="Demos\Device\ClassDriver\DualVirtualSerial\Descriptors.h"></File><File path="Demos\Device\ClassDriver\DualVirtualSerial\Doxygen.conf"></File><File path="Demos\Device\ClassDriver\DualVirtualSerial\DualVirtualSerial.c"></File><File path="Demos\Device\ClassDriver\DualVirtualSerial\DualVirtualSerial.h"></File><File path="Demos\Device\ClassDriver\DualVirtualSerial\DualVirtualSerial.txt"></File><File path="Demos\Device\ClassDriver\DualVirtualSerial\LUFA DualVirtualSerial.inf"></File><File path="Demos\Device\ClassDriver\DualVirtualSerial\makefile"></File></Folder><Folder name="GenericHID"><Folder name="Config"><File path="Demos\Device\ClassDriver\GenericHID\Config\LUFAConfig.h"></File><File path="Demos\Device\ClassDriver\GenericHID\Config\AppConfig.h"></File></Folder><File path="Demos\Device\ClassDriver\GenericHID\Descriptors.c"></File><File path="Demos\Device\ClassDriver\GenericHID\Descriptors.h"></File><File path="Demos\Device\ClassDriver\GenericHID\Doxygen.conf"></File><File path="Demos\Device\ClassDriver\GenericHID\GenericHID.c"></File><File path="Demos\Device\ClassDriver\GenericHID\GenericHID.h"></File><File path="Demos\Device\ClassDriver\GenericHID\GenericHID.txt"></File><File path="Demos\Device\ClassDriver\GenericHID\makefile"></File></Folder><Folder name="Joystick"><Folder name="Config"><File path="Demos\Device\ClassDriver\Joystick\Config\LUFAConfig.h"></File></Folder><File path="Demos\Device\ClassDriver\Joystick\Descriptors.c"></File><File path="Demos\Device\ClassDriver\Joystick\Descriptors.h"></File><File path="Demos\Device\ClassDriver\Joystick\Doxygen.conf"></File><File path="Demos\Device\ClassDriver\Joystick\Joystick.c"></File><File path="Demos\Device\ClassDriver\Joystick\Joystick.h"></File><File path="Demos\Device\ClassDriver\Joystick\Joystick.txt"></File><File path="Demos\Device\ClassDriver\Joystick\makefile"></File></Folder><Folder name="Keyboard"><Folder name="Config"><File path="Demos\Device\ClassDriver\Keyboard\Config\LUFAConfig.h"></File></Folder><File path="Demos\Device\ClassDriver\Keyboard\Descriptors.c"></File><File path="Demos\Device\ClassDriver\Keyboard\Descriptors.h"></File><File path="Demos\Device\ClassDriver\Keyboard\Doxygen.conf"></File><File path="Demos\Device\ClassDriver\Keyboard\Keyboard.c"></File><File path="Demos\Device\ClassDriver\Keyboard\Keyboard.h"></File><File path="Demos\Device\ClassDriver\Keyboard\Keyboard.txt"></File><File path="Demos\Device\ClassDriver\Keyboard\makefile"></File></Folder><Folder name="KeyboardMouse"><Folder name="Config"><File path="Demos\Device\ClassDriver\KeyboardMouse\Config\LUFAConfig.h"></File></Folder><File path="Demos\Device\ClassDriver\KeyboardMouse\Descriptors.c"></File><File path="Demos\Device\ClassDriver\KeyboardMouse\Descriptors.h"></File><File path="Demos\Device\ClassDriver\KeyboardMouse\Doxygen.conf"></File><File path="Demos\Device\ClassDriver\KeyboardMouse\KeyboardMouse.c"></File><File path="Demos\Device\ClassDriver\KeyboardMouse\KeyboardMouse.h"></File><File path="Demos\Device\ClassDriver\KeyboardMouse\KeyboardMouse.txt"></File><File path="Demos\Device\ClassDriver\KeyboardMouse\makefile"></File></Folder><Folder name="KeyboardMouseMultiReport"><Folder name="Config"><File path="Demos\Device\ClassDriver\KeyboardMouseMultiReport\Config\LULine truncated