spi: tegra20-slink: remove spi_master_put() in tegra_slink_remove()

spi_master_put() is already called in spi_unregister_master(), or it
will lead a double decrement refcount.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20210810142230.2220453-1-yangyingliang@huawei.com


Signed-off-by: Mark Brown <broonie@kernel.org>