UPSTREAM: tty: serial: samsung.h: remove reset_port callback from struct s3c24xx_uart_info

The callback was never set, nor called, so remove the pointer entirely
from struct s3c24xx_uart_info.

Bug: 144661360
Cc: Kukjin Kim <kgene@kernel.org>
Cc: Hyunki Koo <kkoos00@naver.com>
Cc: HYUN-KI KOO <hyunki00.koo@samsung.com>
Cc: Shinbeom Choi <sbeom.choi@samsung.com>
Cc: Jiri Slaby <jslaby@suse.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-samsung-soc@vger.kernel.org
Cc: linux-serial@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20191210143706.3928480-4-gregkh@linuxfoundation.org


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 120c8be9476c1da0b77990d1be8bcac1f8a65ecc)
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I606791e1835b1deb915b7c87f7bcaa022fc59e8c