nfc: trf7970a: drop unneeded debug prints

ftrace is a preferred and standard way to debug entering and exiting
functions so drop useless debug prints.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Acked-by: Mark Greer <mgreer@animalcreek.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/nfc/trf7970a.c

@@ -2170,8 +2170,6 @@ static int trf7970a_suspend(struct device *dev)
 	struct spi_device *spi = to_spi_device(dev);
 	struct trf7970a *trf = spi_get_drvdata(spi);
 
-	dev_dbg(dev, "Suspend\n");
-
 	mutex_lock(&trf->lock);
 
 	trf7970a_shutdown(trf);
@@ -2187,8 +2185,6 @@ static int trf7970a_resume(struct device *dev)
 	struct trf7970a *trf = spi_get_drvdata(spi);
 	int ret;
 
-	dev_dbg(dev, "Resume\n");
-
 	mutex_lock(&trf->lock);
 
 	ret = trf7970a_startup(trf);
@@ -2206,8 +2202,6 @@ static int trf7970a_pm_runtime_suspend(struct device *dev)
 	struct trf7970a *trf = spi_get_drvdata(spi);
 	int ret;
 
-	dev_dbg(dev, "Runtime suspend\n");
-
 	mutex_lock(&trf->lock);
 
 	ret = trf7970a_power_down(trf);
@@ -2223,8 +2217,6 @@ static int trf7970a_pm_runtime_resume(struct device *dev)
 	struct trf7970a *trf = spi_get_drvdata(spi);
 	int ret;
 
-	dev_dbg(dev, "Runtime resume\n");
-
 	ret = trf7970a_power_up(trf);
 	if (!ret)
 		pm_runtime_mark_last_busy(dev);