Remove all mostly untranslated PO files

We only import PO files that are at least 75 % translated (8 % in
common), so we can delete now all other PO files. The patch only
removes the mostly untranslated files. Once a file becomes mostly
translated, the bot will import it again.

Change-Id: Iaea7a29267ee554d0d20b5cd050d453cea3798ba
Closes-Bug: #1317794

doc/cli-reference/locale/en_US.po

@@ -1,70 +0,0 @@
-# 
-# Translators:
-msgid ""
-msgstr ""
-"Project-Id-Version: OpenStack Manuals\n"
-"POT-Creation-Date: 2014-03-12 06:48+0000\n"
-"PO-Revision-Date: 2014-03-10 09:08+0000\n"
-"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
-"Language-Team: English (United States) (http://www.transifex.com/projects/p/openstack/language/en_US/)\n"
-"MIME-Version: 1.0\n"
-"Content-Type: text/plain; charset=UTF-8\n"
-"Content-Transfer-Encoding: 8bit\n"
-"Language: en_US\n"
-"Plural-Forms: nplurals=2; plural=(n != 1);\n"
-
-#: ./doc/cli-reference/bk-cli-reference.xml10(title)
-msgid "OpenStack Command-Line Interface Reference"
-msgstr ""
-
-#: ./doc/cli-reference/bk-cli-reference.xml12(titleabbrev)
-msgid "CLI Reference"
-msgstr ""
-
-#: ./doc/cli-reference/bk-cli-reference.xml20(orgname)
-#: ./doc/cli-reference/bk-cli-reference.xml25(holder)
-msgid "OpenStack Foundation"
-msgstr ""
-
-#: ./doc/cli-reference/bk-cli-reference.xml24(year)
-msgid "2014"
-msgstr ""
-
-#: ./doc/cli-reference/bk-cli-reference.xml27(releaseinfo)
-msgid "trunk"
-msgstr ""
-
-#: ./doc/cli-reference/bk-cli-reference.xml28(productname)
-msgid "OpenStack"
-msgstr ""
-
-#: ./doc/cli-reference/bk-cli-reference.xml32(remark)
-msgid "Remaining licensing details are filled in by the template."
-msgstr ""
-
-#: ./doc/cli-reference/bk-cli-reference.xml37(para)
-msgid ""
-"This guide describes how to obtain, create, and modify virtual machine "
-"images that are compatible with OpenStack."
-msgstr ""
-
-#: ./doc/cli-reference/bk-cli-reference.xml46(date)
-msgid "2014-01-29"
-msgstr ""
-
-#: ./doc/cli-reference/bk-cli-reference.xml50(para)
-msgid "Initial version."
-msgstr ""
-
-#: ./doc/cli-reference/ch_preface.xml10(title)
-msgid "Preface"
-msgstr ""
-
-#: ./doc/cli-reference/ch_cli.xml10(title)
-msgid "OpenStack command-line clients"
-msgstr ""
-
-#. Put one translator per line, in the form of NAME <EMAIL>, YEAR1, YEAR2
-#: ./doc/cli-reference/ch_cli.xml0(None)
-msgid "translator-credits"
-msgstr ""