parisc: Drop zero variable initialisations in mm/init.c

Initialise global and static variable to 0 is always unnecessary.
Remove the unnecessary initialisations.
Signed-off-by: Jason Wang <wangborong@cdjrlc.com>
Signed-off-by: Helge Deller <deller@gmx.de>

arch/parisc/mm/init.c

@@ -722,7 +722,7 @@ static unsigned long space_id[SID_ARRAY_SIZE] = { 1 }; /* disallow space 0 */
 static unsigned long dirty_space_id[SID_ARRAY_SIZE];
 static unsigned long space_id_index;
 static unsigned long free_space_ids = NR_SPACE_IDS - 1;
-static unsigned long dirty_space_ids = 0;
+static unsigned long dirty_space_ids;
 
 static DEFINE_SPINLOCK(sid_lock);