MIPS: Remove useless zero initializations.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/nxp/pnx8550/common/proc.c

@@ -69,9 +69,9 @@ static int pnx8550_registers_read(char* page, char** start, off_t offset, int co
         return len;
 }
 
-static struct proc_dir_entry* pnx8550_dir        = NULL;
-static struct proc_dir_entry* pnx8550_timers     = NULL;
-static struct proc_dir_entry* pnx8550_registers  = NULL;
+static struct proc_dir_entry* pnx8550_dir;
+static struct proc_dir_entry* pnx8550_timers;
+static struct proc_dir_entry* pnx8550_registers;
 
 static int pnx8550_proc_init( void )
 {