Cleaning up IME drawables

...e-sw600dp-hdpi/btn_keyboard_key_popup_selected_holo.9.png

java/res/drawable-sw600dp-hdpi/sym_keyboard_delete_holo.png

java/res/drawable-sw600dp-hdpi/sym_keyboard_return_holo.png

java/res/drawable-sw600dp-hdpi/sym_keyboard_search_holo.png

.../res/drawable-sw600dp-hdpi/sym_keyboard_settings_holo.png

java/res/drawable-sw600dp-hdpi/sym_keyboard_shift_holo.png

.../drawable-sw600dp-hdpi/sym_keyboard_shift_locked_holo.png

java/res/drawable-sw600dp-hdpi/sym_keyboard_smiley_holo.png

java/res/drawable-sw600dp-hdpi/sym_keyboard_space_holo.png

java/res/drawable-sw600dp-hdpi/sym_keyboard_tab_holo.png

java/res/drawable-sw600dp-hdpi/sym_keyboard_voice_holo.png

...res/drawable-sw600dp-hdpi/sym_keyboard_voice_off_holo.png

...able-sw600dp-mdpi/btn_keyboard_key_dark_normal_holo.9.png

...-sw600dp-mdpi/btn_keyboard_key_dark_normal_off_holo.9.png

...e-sw600dp-mdpi/btn_keyboard_key_dark_normal_on_holo.9.png

...ble-sw600dp-mdpi/btn_keyboard_key_dark_pressed_holo.9.png

...sw600dp-mdpi/btn_keyboard_key_dark_pressed_off_holo.9.png

...-sw600dp-mdpi/btn_keyboard_key_dark_pressed_on_holo.9.png

...ble-sw600dp-mdpi/btn_keyboard_key_light_normal_holo.9.png

...le-sw600dp-mdpi/btn_keyboard_key_light_pressed_holo.9.png