common-rst.pot contains obsolete contents

[Akihiro Motoki]

doc/common-rst/source/locale/common-rst.pot contains obsolete contents.

common-rst.pot is updated by tools/generatepot-rst.sh, but it only makes additive changes.
We need to throw away deleted or moved contents.

From the mails with Kato-san and Andreas,
we have the following reason of the additive changes.

Quote from Kato-san's mail.
---
Each document uses the common contents. However, each document has the different exclude_patterns, because Sphinx warns if there are unused files. Therefore, each document has a partial common-rst file, not a whole common-rst.
---

From the discussion and my investigation, it seems we need to prepare a document which covers all files under common-rst/.

[Akihiro Motoki (amotoki)]

https://review.openstack.org/#/c/233932

[Akihiro Motoki (amotoki)]

Woops... I added a wrong link.
https://review.openstack.org/#/c/235611/

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/235611
Committed: https://git.openstack.org/cgit/openstack/openstack-manuals/commit/?id=61b9f5a221b95c7a8c66c687d17a621b2dbc44dd
Submitter: Jenkins
Branch: master

commit 61b9f5a221b95c7a8c66c687d17a621b2dbc44dd
Author: Akihiro Motoki <email address hidden>
Date: Sat Oct 17 21:22:26 2015 +0900

    generatepot-rst: dedicate logic to generate common-rst.pot

    Previously common-rst.pot is additive only and
    deleted strings in the source document will remain forever.
    This commit make generatepot-rst.sh not reuse existing
    common-rst.pot and generate the POT file from scratch.

    This patch creates an index rst file which includes all
    files under common-rst and generate common-rst.pot.
    By doing so, all contents of common-rst can be covered.

    Closes-Bug: #1507138
    Change-Id: I888f37ad5e14a0e1cc7d182e376acaf63f98e565

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/openstack-manuals 15.0.0 release.