Get rid of redundant cinder api calls

[Michael Dovgal]

During executing tenant_limit_usages quotas function here [0] we get information about cinder volumes/snapshots/gigabites usage. Like this:

{u'maxTotalBackupGigabytes': 1000,
 u'maxTotalBackups': 10,
 u'maxTotalSnapshots': 10,
 u'maxTotalVolumeGigabytes': 1000,
 u'maxTotalVolumes': 10,
 u'totalBackupGigabytesUsed': 1,
 u'totalBackupsUsed': 1,
 u'totalGigabytesUsed': 8,
 u'totalSnapshotsUsed': 1,
 u'totalVolumesUsed': 6
}

After it here [1] we trying to get the same information as we've already got and add it one more time to limits dict here [2]
Also these calls slows down the application, so we need to get rid of them.

[0] - https://github.com/openstack/horizon/blob/29a6ed4cc06ef9cbadee311c947fe19308a387ed/openstack_dashboard/usage/quotas.py#L489

https://github.com/openstack/horizon/blob/29a6ed4cc06ef9cbadee311c947fe19308a387ed/openstack_dashboard/usage/quotas.py#L490-L491
[2] - https://github.com/openstack/horizon/blob/29a6ed4cc06ef9cbadee311c947fe19308a387ed/openstack_dashboard/usage/quotas.py#L497-L499

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/482486
Committed: https://git.openstack.org/cgit/openstack/horizon/commit/?id=d132c2eb11bdf4a28bedcd4061d5b76b4402a08e
Submitter: Jenkins
Branch: master

commit d132c2eb11bdf4a28bedcd4061d5b76b4402a08e
Author: Mykhailo Dovgal <email address hidden>
Date: Mon Jul 10 19:16:06 2017 +0300

    Get rid of redundant cinder api calls

    During executing tenant_limit_usages quotas function we get
    information about cinder volumes/snapshots/gigabites usage
    that we've already had after tenant_absolute_limits call.
    Getting this information we make more api calls that slow down
    our application.

    This patch fixes this issue.

    Closes-Bug: #1703584
    Change-Id: Ia6d2dbb8f18ce93f71668d6ebd2689b851586ca9

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/horizon 12.0.0.0b3 development milestone.