Deprecate instance_get_all_by_filters() from conductor

This deprecates the instance_get_all_by_filters() method from
conductor, which is no longer used.

This also removes a test that was mocking the conductor method,
but that really tests nothing at all. Perhaps a new test to ensure
that the period=0 case is handled properly is in order, but this
test definitely wasn't doing that.

Related to blueprint compute-manager-objects-juno

Change-Id: I1e7bc19296d1773bbc2f5f9e77a1faf0e6ac1fe6
Deprecate instance_get_active_by_window_joined() from conductor

This deprecates the instance_get_active_by_window_joined() method
from conductor which is no longer used.

Related to blueprint compute-manager-objects-juno

Change-Id: Ia9ce0cf49180806da64cc034ad12ddf2b3f1c424
Remove legacy block device usage in ec2 API

This patch makes the single place that would get the block device
mappings from the database, not convert objects to legacy format,

Also fixes fake values in tests.

Change-Id: I77ecd8782deeec42963b5b1dd16bd85923b4d261
Merge "Remove legacy block device usage in ec2 API"