md/raid5: Drop unnecessary call to r5c_check_stripe_cache_usage()

Now that raid5_get_active_stripe() has been refactored it is appearant
that r5c_check_stripe_cache_usage() doesn't need to be called in
the wait_for_stripe branch.

r5c_check_stripe_cache_usage() will only conditionally call
r5l_wake_reclaim(), but that function is called two lines later.

Drop the call for cleanup.
Reported-by: Martin Oliveira <martin.oliveira@eideticom.com>
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Song Liu <song@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

drivers/md/raid5.c

@@ -810,7 +810,6 @@ raid5_get_active_stripe(struct r5conf *conf, sector_t sector,
 	if (noblock)
 		goto out;
 
-	r5c_check_stripe_cache_usage(conf);
 	set_bit(R5_INACTIVE_BLOCKED, &conf->cache_state);
 	r5l_wake_reclaim(conf->log, 0);
 	wait_event_lock_irq(conf->wait_for_stripe,