afs: cell: Remove unnecessary code in afs_lookup_cell

Due to recent changes this piece of code is no longer needed.

Addresses-Coverity-ID: 1462033
Link: https://lkml.kernel.org/r/4923.1510957307@warthog.procyon.org.uk
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: David Howells <dhowells@redhat.com>
diff --git a/fs/afs/cell.c b/fs/afs/cell.c
index 1858c91..9bb921d 100644
--- a/fs/afs/cell.c
+++ b/fs/afs/cell.c
@@ -207,13 +207,8 @@
 		rcu_read_lock();
 		cell = afs_lookup_cell_rcu(net, name, namesz);
 		rcu_read_unlock();
-		if (!IS_ERR(cell)) {
-			if (excl) {
-				afs_put_cell(net, cell);
-				return ERR_PTR(-EEXIST);
-			}
+		if (!IS_ERR(cell))
 			goto wait_for_cell;
-		}
 	}
 
 	/* Assume we're probably going to create a cell and preallocate and