spi: mediatek: remove spi_master_put in mtk_spi_remove()

The call to spi_master_put() in mtk_spi_remove() is redundant since
the master is registered using devm_spi_register_master() and no
reference hold by using spi_master_get() in mtk_spi_remove().

This is detected by Coccinelle semantic patch.
Signed-off-by: Wei Yongjun <weiyj.lk@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

drivers/spi/spi-mt65xx.c

@@ -685,7 +685,6 @@ static int mtk_spi_remove(struct platform_device *pdev)
 	pm_runtime_disable(&pdev->dev);
 
 	mtk_spi_reset(mdata);
-	spi_master_put(master);
 
 	return 0;
 }