[PATCH] fix ide_system_bus_speed() causing "Badness in pci_find_subsys..."

Noticed by Marcel Cotta <mc123@mail.ru>.

ide_init() always initializes system_bus_speed variable
so system_bus_clock() should never call ide_system_bus_speed()
and no driver is calling ide_system_bus_speed() directly.

Bug was that if no IDE kernel parameter was given during boot
system_bus_speed will be zeroed in init_ide_data().

This patch should fix the problem
(as a bonus -> no need to zero these variables they are static).

drivers/ide/ide.c

@@ -302,9 +302,6 @@ static void __init init_ide_data (void)
 	initializing = 1;
 	ide_init_default_hwifs();
 	initializing = 0;
-
-	idebus_parameter = 0;
-	system_bus_speed = 0;
 }
 
 /*