torture: Remove exporting of internal functions

The functions torture_onoff_cleanup() and torture_shuffle_cleanup()
are declared static and marked EXPORT_SYMBOL_GPL(), which is at best an
odd combination.  Because these functions are not used outside of the
kernel/torture.c file they are defined in, this commit removes their
EXPORT_SYMBOL_GPL() marking.

Fixes: cc47ae08 ("rcutorture: Abstract torture-test cleanup")
Signed-off-by: Denis Efremov <efremov@linux.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>

kernel/torture.c

@@ -263,7 +263,6 @@ static void torture_onoff_cleanup(void)
 	onoff_task = NULL;
 #endif /* #ifdef CONFIG_HOTPLUG_CPU */
 }
-EXPORT_SYMBOL_GPL(torture_onoff_cleanup);
 
 /*
  * Print online/offline testing statistics.
@@ -449,7 +448,6 @@ static void torture_shuffle_cleanup(void)
 	}
 	shuffler_task = NULL;
 }
-EXPORT_SYMBOL_GPL(torture_shuffle_cleanup);
 
 /*
  * Variables for auto-shutdown.  This allows "lights out" torture runs