rtc: stm32: remove incorrect #ifdef check

After a previous commit changed the driver over to
SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(), the suspend/resume
functions must no longer be hidden behind an #ifdef:

In file included from include/linux/clk.h:13,
                 from drivers/rtc/rtc-stm32.c:8:
drivers/rtc/rtc-stm32.c:927:39: error: 'stm32_rtc_suspend' undeclared here (not in a function); did you mean 'stm32_rtc_probe'?
  927 |         SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(stm32_rtc_suspend, stm32_rtc_resume)
      |                                       ^~~~~~~~~~~~~~~~~
include/linux/kernel.h:58:44: note: in definition of macro 'PTR_IF'
   58 | #define PTR_IF(cond, ptr)       ((cond) ? (ptr) : NULL)
      |                                            ^~~
include/linux/pm.h:329:26: note: in expansion of macro 'pm_sleep_ptr'
  329 |         .suspend_noirq = pm_sleep_ptr(suspend_fn), \
      |                          ^~~~~~~~~~~~

Fixes: 6beace8 ("rtc: stm32: change PM callbacks to "_noirq()"")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Valentin Caron <valentin.caron@foss.st.com>
Change-Id: Id8aa7a287aa39b135c29f75d532db21691e57c20
Reviewed-on: https://gerrit.st.com/c/mpu/oe/st/linux-stm32/+/321068
ACI: CIBUILD <MDG-smet-aci-builds@list.st.com>
ACI: CITOOLS <MDG-smet-aci-reviews@list.st.com>
Reviewed-by: Amelie DELAUNAY <amelie.delaunay@foss.st.com>
Domain-Review: Amelie DELAUNAY <amelie.delaunay@foss.st.com>

Author: arndb

drivers/rtc/rtc-stm32.c

@@ -1098,7 +1098,6 @@ static int stm32_rtc_remove(struct platform_device *pdev)
 	return 0;
 }
 
-#ifdef CONFIG_PM_SLEEP
 static int stm32_rtc_suspend(struct device *dev)
 {
 	struct stm32_rtc *rtc = dev_get_drvdata(dev);
@@ -1129,7 +1128,6 @@ static int stm32_rtc_resume(struct device *dev)
 
 	return ret;
 }
-#endif
 
 static const struct dev_pm_ops stm32_rtc_pm_ops = {
 	SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(stm32_rtc_suspend, stm32_rtc_resume)