i40iw: Remove check on return from device_init_pestat()

Remove unnecessary check for return code from
device_init_pestat() and change func to void.

Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Henry Orosco <henry.orosco@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

drivers/infiniband/hw/i40iw/i40iw_p.h

@@ -47,7 +47,7 @@ void i40iw_debug_buf(struct i40iw_sc_dev *dev, enum i40iw_debug_flag mask,
 enum i40iw_status_code i40iw_device_init(struct i40iw_sc_dev *dev,
 					 struct i40iw_device_init_info *info);
 
-enum i40iw_status_code i40iw_device_init_pestat(struct i40iw_dev_pestat *);
+void i40iw_device_init_pestat(struct i40iw_dev_pestat *devstat);
 
 void i40iw_sc_cqp_post_sq(struct i40iw_sc_cqp *cqp);