staging: qlge: Remove print statements for lbq_clean_idx and lbq_free_cnt

Remove debug print statements referring to non-existent fields
'lbq_clean_idx' and 'lbq_free_cnt' in the 'rx_ring' struct, which causes
a compilation failure when QL_DEV_DUMP is set.

These fields were initially removed as a part of commit aec626d2
("staging: qlge: Update buffer queue prod index despite oom") in 2019.

Their replacement fields ('next_to_use' and 'next_to_clean') are already
being printed, so this patch does not add new debug statements for them.
Signed-off-by: Rylan Dmello <mail@rylan.coffee>
Link: https://lore.kernel.org/r/aa7e0197f4e34cec0855124e45696e33dd9527e5.1587959245.git.mail@rylan.coffeeSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/qlge/qlge_dbg.c

@@ -1757,8 +1757,6 @@ void ql_dump_rx_ring(struct rx_ring *rx_ring)
 	       rx_ring->lbq.prod_idx_db_reg);
 	pr_err("rx_ring->lbq.next_to_use = %d\n", rx_ring->lbq.next_to_use);
 	pr_err("rx_ring->lbq.next_to_clean = %d\n", rx_ring->lbq.next_to_clean);
-	pr_err("rx_ring->lbq_clean_idx = %d\n", rx_ring->lbq_clean_idx);
-	pr_err("rx_ring->lbq_free_cnt = %d\n", rx_ring->lbq_free_cnt);
 
 	pr_err("rx_ring->sbq.base = %p\n", rx_ring->sbq.base);
 	pr_err("rx_ring->sbq.base_dma = %llx\n",