Revert "Flatten paths to MS SQL Cluster agent templates."

This reverts commit d87bc2309fcc4cc71aaa3d2512e9bcdc6f39b8c0.

Path flattening is reverted, but opening ports for WinRM 2.0 is kept.
Related-Bug: #1271578

Change-Id: I7bcf844bcff2932e1be19d9f62d3ddede0b5360e