Update Cinder dev doc

Removing mention of adding your name and email to Author files in
Cinder dev doc.

Change-Id: I5b723dd9ff1153096852a4c1c6a7b59bf0d04d3c
Closes-Bug: #1309581
Remove unused reservation methods from db.api

There are several unused reservation methods are not called directly,
so it could be removed from the db API.

closes-bug: #1255925

Change-Id: I8dffa1d4222da162e55ddd6cfce656b4620f3fad
Merge "Remove unused reservation methods from db.api"