net/fm: Remove unused code of FMan QMI

The QMan is not used in FMan IM mode, so no QMI enqueue or QMI
dequeue are performed.
Signed-off-by: NHou Zhiqiang <Zhiqiang.Hou@nxp.com>
Acked-by: NJoe Hershberger <joe.hershberger@ni.com>

drivers/net/fm/fm.c

@@ -336,9 +336,6 @@ static int fm_init_bmi(int fm_idx, struct fm_bmi_common *bmi)
 
 static void fm_init_qmi(struct fm_qmi_common *qmi)
 {
-	/* disable enqueue and dequeue of QMI */
-	clrbits_be32(&qmi->fmqm_gc, FMQM_GC_ENQ_EN | FMQM_GC_DEQ_EN);
-
 	/* disable all error interrupts */
 	out_be32(&qmi->fmqm_eien, FMQM_EIEN_DISABLE_ALL);
 	/* clear all error events */