simply display bitcoin address instead of including external javascripts

plugins/CorePluginsAdmin/stylesheets/plugins_admin.less

@@ -34,6 +34,25 @@ table.dataTable tr.inactive-plugin:hover > td {
         .donation-link {
             display: inline-block;
             margin: 0 1em;
+
+            &.bitcoin {
+                margin: 1em 0!important;
+                display: block!important;
+                a {
+                    display: inline-block;
+                    color: #c7254e;
+                    border-radius: 4px;
+                    font-size: 1.1em;
+                    padding: 5px;
+                    text-decoration: none!important;
+                    background-color: #f9f2f4;
+                }
+                span {
+                    font-size: 1.2em;
+                    font-weight: bold;
+                    display: block;
+                }
+            }
         }
     }
 }

plugins/CorePluginsAdmin/templates/macros.twig

@@ -202,8 +202,10 @@
                                             <a class="donation-link flattr" target="_blank" href="{{ plugin.info.donate.flattr }}"><img class="alignnone" title="Flattr" alt="" src="plugins/CorePluginsAdmin/images/flattr.png" height="29" /></a>
                                         {% endif %}
                                         {% if plugin.info.donate.bitcoin is defined and plugin.info.donate.bitcoin %}
-                                            <div class="donation-link bitcoin"><a class="coinbase-button" data-height="30" data-button-style="donation_small" data-code="{{ plugin.info.donate.bitcoin|escape('html_attr') }}" href="https://coinbase.com/checkouts/{{ plugin.info.donate.bitcoin|escape('url') }}" target="_blank">Donate With Bitcoin</a></div>
-                                            <script src="https://coinbase.com/assets/button.js" type="text/javascript"></script>
+                                            <div class="donation-link bitcoin">
+                                                <span>Donate Bitcoins to:</span>
+                                                <a href="bitcoin:{{ plugin.info.donate.bitcoin|escape('url') }}">{{ plugin.info.donate.bitcoin }}</a>
+                                            </div>
                                         {% endif %}
                                         </div>
                                         <input role="no" type="button" value="{{ 'General_Close'|translate }}"/>