Revert "kvserver: deflake large unsplittable range test"

This reverts commit 9d4a50c.

pkg/kv/kvserver/replicate_queue_test.go

@@ -1811,21 +1811,6 @@ func TestLargeUnsplittableRangeReplicate(t *testing.T) {
 	toggleReplicationQueues(tc, true /* active */)
 	toggleSplitQueues(tc, true /* active */)
 
-	// Check that the two ranges exist for table t.
-	testutils.SucceedsSoon(t, func() error {
-		r := db.QueryRow(
-			"SELECT count(*) FROM [SHOW RANGES FROM TABLE t]")
-		var count int
-		if err := r.Scan(&count); err != nil {
-			return err
-		}
-		if count != 2 {
-			return fmt.Errorf(
-				"splits not created, expected %d ranges, found %d", 2, count)
-		}
-		return nil
-	})
-
 	// We're going to create a large row, but now large enough that write
 	// back-pressuring kicks in and refuses it.
 	var sb strings.Builder