TestDiskUsage fails on Windows

[aschmahmann]

This test

go-ds-leveldb/ds_test.go

Line 236 in 08467f0

func TestDiskUsage(t *testing.T) {

fails on Windows because the database cleanup function (os.RemoveAll(path) encounters a sharing violation on Windows). This might be related to golang/go#34681 and golang/go#32088, or could just be something easier.