Simplify tooltips code

weblate/html/git-commit-info.html

 {% load i18n %}{% load translations %}
-<span class="git-commit ui-corner-all">{{ commit.hexsha|slice:":8" }}<span class="git-details">
+<span class="git-commit ui-corner-all tooltip">{{ commit.hexsha|slice:":8" }}<span class="tooltip-content">
 {% blocktrans with commit.hexsha as hash %}Commit {{ hash }}{% endblocktrans %}<br />
 {% blocktrans with commit.author.name as author and commit.authored_date|gitdate as date %}Authored by {{ author }} on {{ date }}{% endblocktrans %}
 </span></span>

weblate/media/loader.js

@@ -388,12 +388,9 @@ $(function () {
             if (content.length > 0) {
                 element = content;
             }
-            if (element.is('span.git-commit')) {
-                element = $(this).find('.git-details');
-            }
             return element.html();
         },
-        items: ".tooltip, span.git-commit"
+        items: ".tooltip"
     });
     if (update_lock) {
         window.setInterval(function () {

weblate/media/style.css

@@ -271,7 +271,7 @@ img.engage-icon {
     width: 1em;
     height: 1em;
 }
-.git-details, .tooltip-content {
+.tooltip-content {
     display: none;
 }
 .ui-tooltip {