Remove unused resources

java/res/drawable-hdpi/btn_keyboard_key_normal.9.png

java/res/drawable-hdpi/btn_keyboard_key_normal_off.9.png

java/res/drawable-hdpi/btn_keyboard_key_normal_on.9.png

java/res/drawable-hdpi/btn_keyboard_key_pressed.9.png

java/res/drawable-hdpi/btn_keyboard_key_pressed_off.9.png

java/res/drawable-hdpi/btn_keyboard_key_pressed_on.9.png

java/res/drawable-hdpi/ic_subtype_mic_dark.png

java/res/drawable-mdpi/btn_keyboard_key_normal.9.png

java/res/drawable-mdpi/btn_keyboard_key_normal_off.9.png

java/res/drawable-mdpi/btn_keyboard_key_normal_on.9.png

java/res/drawable-mdpi/btn_keyboard_key_pressed.9.png

java/res/drawable-mdpi/btn_keyboard_key_pressed_off.9.png

java/res/drawable-mdpi/btn_keyboard_key_pressed_on.9.png

java/res/drawable-mdpi/sym_keyboard_mic_holo_light.png

java/res/drawable-xhdpi/btn_keyboard_key_normal.9.png

java/res/drawable-xhdpi/btn_keyboard_key_normal_off.9.png

java/res/drawable-xhdpi/btn_keyboard_key_normal_on.9.png

java/res/drawable-xhdpi/btn_keyboard_key_pressed.9.png

java/res/drawable-xhdpi/btn_keyboard_key_pressed_off.9.png

java/res/drawable-xhdpi/btn_keyboard_key_pressed_on.9.png