resources: remove unused icons

resources/icons/baseline_close_24dp.svg

resources/icons/baseline_done_24dp.svg

resources/icons/close_white_24dp.svg

resources/icons/done_white_24dp.svg

resources/icons/drafts_24dp.svg

resources/icons/group_add_24dp.svg

resources/icons/ic_arrow_back_white_24dp.svg

resources/icons/ic_content_copy.svg

resources/icons/ic_high_quality_24dp.svg

resources/icons/ic_send_24dp.svg

resources/icons/ic_video_call_24dp.svg

resources/icons/info_24dp.svg

resources/icons/pause_24dp.svg

resources/icons/phone_paused_24dp.svg

resources/icons/qr_code_24dp.svg

resources/icons/round_arrow_drop_down_24dp.svg

resources/icons/round_arrow_drop_up_24dp.svg

resources/icons/round_arrow_right_24dp.svg

resources/icons/round_undo_24dp.svg

resources/icons/settings_backup_restore_black_18dp.svg