BuiltInstanceTasks.get_volume_mountpoint is using an unavailable argument

[Sushil Kumar]

At https://github.com/openstack/trove/blob/master/trove/taskmanager/models.py#L593

BuiltInstanceTasks.get_volume_mountpoint is using an unavailable argument is using an un-assigned argument volume_id.

This should be rather self.volume_id which is a part of self.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/63589

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/63589
Committed: https://git.openstack.org/cgit/openstack/trove/commit/?id=f835ad6aca4e9131afbb3c9711c08d8650decb82
Submitter: Jenkins
Branch: master

commit f835ad6aca4e9131afbb3c9711c08d8650decb82
Author: Sushil Kumar <email address hidden>
Date: Sat Dec 21 18:15:10 2013 +0000

    Removes BuiltInstanceTasks.get_volume_mountpoint

    Reasons:
    - Method is not being used in the project.
    - Method has an unassigned variable used volume_id.

    Changes:
    - Removes get_volume_mountpoint from trove.taskmanager.models.

    Change-Id: I2942a4cc952a473dd1ed1d52c8cb2205566b68ae
    Closes-Bug: #1263371