Remove applist management stuff from app_install_list page

src/locales/en.json

@@ -417,7 +417,6 @@
     "name": "Name",
     "install_community_appslists_info": "Community applications list allows you to install community maintained applications.<br />See the full list on <a href='https://yunohost.org/apps'>yunohost.org/apps</a>.",
     "install_community_appslists_warning": "Note that these applications packages are <strong>not</strong> official and not maintained by the YunoHost team.<br />Installing these applications is at your own risk and could break your system.",
-    "install_custom_app_appslists_info": "Note that you can use alternative applications lists to install some other apps maintained by the YunoHost community.",
     "purge_user_data_checkbox": "Purge %s's data? (This will remove the content of it's home and mail directories.)",
     "purge_user_data_warning": "Purging user's data is not reversible. Be sure you know what you're doing!"
 }

src/views/app/app_list_install.ms

@@ -4,15 +4,6 @@
     <a href="#/apps/install">{{t 'install'}}</a>
 </div>
 
-<div class="actions-group">
-    <a href="#/apps/lists" role="button" class="btn btn-success">
-        <span class="fa-list"></span> {{t 'appslists_manage'}}
-    </a>
-    <a href="#/apps/lists/refresh" role="button" class="btn btn-info">
-        <span class="fa-refresh"></span> {{t 'refresh_app_list'}}
-    </a>
-</div>
-
 <div class="separator"></div>
 
 <div class="input-group" id="app-filter-input">
@@ -79,13 +70,6 @@
             <span class="fa-warning"></span>
             {{t 'confirm_install_custom_app'}}
         </p>
-        <div class="alert alert-info">
-            <p><span class="fa-lightbulb-o"></span>
-            {{t 'install_custom_app_appslists_info'}}</p>
-            <p>
-                <a role="button" href="#/apps/lists" class="btn btn-info">{{t 'appslists_manage'}}</a>
-            </p>
-        </div>
         <form action="#/apps/install/custom" method="POST" class="form-horizontal">
             <div class="form-group has-feedback">
                 <label for="url" class="col-sm-12">{{t 'url'}}</label>