usb: otg: fsl_otg: remove redundant NULL check before kfree

kfree on NULL pointer is a no-op.
Signed-off-by: Syam Sidhardhan <s.syam@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

drivers/usb/otg/fsl_otg.c

@@ -361,27 +361,17 @@ int fsl_otg_init_timers(struct otg_fsm *fsm)
 void fsl_otg_uninit_timers(void)
 {
 	/* FSM used timers */
-	if (a_wait_vrise_tmr != NULL)
 	kfree(a_wait_vrise_tmr);
-	if (a_wait_bcon_tmr != NULL)
 	kfree(a_wait_bcon_tmr);
-	if (a_aidl_bdis_tmr != NULL)
 	kfree(a_aidl_bdis_tmr);
-	if (b_ase0_brst_tmr != NULL)
 	kfree(b_ase0_brst_tmr);
-	if (b_se0_srp_tmr != NULL)
 	kfree(b_se0_srp_tmr);
-	if (b_srp_fail_tmr != NULL)
 	kfree(b_srp_fail_tmr);
-	if (a_wait_enum_tmr != NULL)
 	kfree(a_wait_enum_tmr);
 
 	/* device driver used timers */
-	if (b_srp_wait_tmr != NULL)
 	kfree(b_srp_wait_tmr);
-	if (b_data_pulse_tmr != NULL)
 	kfree(b_data_pulse_tmr);
-	if (b_vbus_pulse_tmr != NULL)
 	kfree(b_vbus_pulse_tmr);
 }