Revert "feature-shared-volume-instance: work around sleep."

This reverts commit 6e9018ff57219cc43fcbf107e5ee1da6384d3d00.
Revert "feature-shared-volume-instance: fix syntax error."

This reverts commit 379705ae7a16a9f4edd06b358aa99eaceb5b4562.
Revert "feature-shared-volume-instance: add find device path method."

This reverts commit 3cc98ef4c02b70cc8a4d171dbd5894c93ad646c9.