Remove no longer used template

Signed-off-by: Michal Čihař <michal@cihar.com>

weblate/html/last-changes.html

-{% load i18n %}
-{% load translations %}
-{% load permissions %}
-
-<div class="panel panel-primary">
-<div class="panel-heading">
-<h4 class="panel-title">
-{% trans "History" %}
-</h4>
-</div>
-<div class="panel-body">
-
-{% include "last-changes-content.html" %}
-
-</div>
-{% if not hide_browse or last_changes_rss %}
-<div class="panel-footer">
-{% if not hide_browse %}
-<a class="btn btn-default" href="{% url 'changes' %}?{{ last_changes_url }}">{% trans "Browse changes" %}</a>
-{% endif %}
-{% if last_changes_rss %}
-<a class="btn btn-default" href="{{ last_changes_rss }}">{% trans "Follow using RSS" %}</a>
-{% endif %}
-</div>
-{% endif %}
-</div>