Do not use OFSPath in O3FS BasicOzoneClientAdapterImpl

In BasicOzoneClientAdapterImpl#isFileClosed we use OFSPath to check if the path was a key, but it Utility class for OFS not O3FS. That is to say, the pathStr doen't include volume and bucket but the OFSPath still setting the first two levels of directories or key as volume and bucket. If the path was less than two level it comes out an error.

https://github.com/apache/ozone/blob/HDDS-7593/hadoop-ozone/ozonefs-common/src/main/java/org/apache/hadoop/fs/ozone/BasicOzoneClientAdapterImpl.java#L774