power_suspend: drop hack for lumpy, stumpy, kiev

These boards are AUE and the hack seems to use a deprecated mosys
command. Just delete the hack.

BUG=chromium:1030473
TEST=CQ

Change-Id: I4081a1dbaa2b4b4964d3fa144ad12d5a8e6962b6
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/autotest/+/1949414
Tested-by: Jack Rosenthal <jrosenth@chromium.org>
Reviewed-by: Dana Goyette <dgoyette@chromium.org>
Commit-Queue: Jack Rosenthal <jrosenth@chromium.org>
diff --git a/client/cros/power/power_suspend.py b/client/cros/power/power_suspend.py
index 3ed2744..d551047 100644
--- a/client/cros/power/power_suspend.py
+++ b/client/cros/power/power_suspend.py
@@ -275,10 +275,6 @@
                     return None
             raise sys_power.SpuriousWakeupError('Spurious wake in S3: %s | %s'
                     % (wake_elog, wake_syslog))
-        if self._get_board() in ['lumpy', 'stumpy', 'kiev']:
-            logging.debug('RTC read failure (crosbug/36004), dumping nvram:\n' +
-                    utils.system_output('mosys nvram dump', ignore_status=True))
-            return None
         raise error.TestError('Broken RTC timestamp: ' +
                               utils.read_file(self.HWCLOCK_FILE))