Replace zanata references with Fedora weblate

Fedora has switched to Weblate for translations:
https://fedoraproject.org/wiki/L10N/Translate_on_Weblate

* Remove zanata.xml
* Adjust CONTRIBUTING and appdata links to point to Fedora's weblate

Signed-off-by: Cole Robinson <crobinso@redhat.com>

CONTRIBUTING.md

@@ -96,11 +96,10 @@ that still need to be added to our command line.
 
 ## Translations
 
-Translations are handled at `fedora.zanata.org`. Please register for a Fedora
+Translations are handled through the Weblate instance hosted by the Fedora Project.
-account and request access to a translation team, as described at
+
-[Translate on Zanata](https://fedoraproject.org/wiki/L10N/Translate_on_Zanata),
+* https://translate.fedoraproject.org/projects/virt-manager/virt-manager/
-and contribute at
+* More info about translating as part of Fedora: https://fedoraproject.org/wiki/L10N/Translate_on_Weblate
-[virt-manager at Zanata](https://fedora.zanata.org/project/view/virt-manager/).
 
 
 ## Advanced testing

data/virt-manager.appdata.xml.in

@@ -30,7 +30,7 @@
   </screenshots>
   <url type="homepage">https://www.virt-manager.org/</url>
   <url type="bugtracker">https://bugzilla.redhat.com/enter_bug.cgi?product=Virtualization%20Tools&amp;component=virt-manager</url>
-  <url type="translate">https://fedora.zanata.org/project/view/virt-manager/</url>
+  <url type="translate">https://translate.fedoraproject.org/projects/virt-manager/virt-manager/</url>
   <update_contact>virt-tools-list@redhat.com</update_contact>
   <translation type="gettext">virt-manager</translation>
   <keywords>

po/zanata.xml

@@ -1,7 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
-<config xmlns="http://zanata.org/namespace/config/">
-  <url>https://fedora.zanata.org/</url>
-  <project>virt-manager</project>
-  <project-version>master</project-version>
-  <project-type>gettext</project-type>
-</config>