remove wrong lang=javascript attributes from script tags

snippet/auth.html.snippet

@@ -6,4 +6,4 @@
           <br />
           <input id="password" name="password" type="password" />
         </div>
-        <script src="/static/auth-hide.js" lang="javascript"></script>
+        <script src="/static/auth-hide.js"></script>

template/index.html

@@ -68,6 +68,6 @@ authentifizieren
         repo
       </a>
     </footer>
-    <script src="/static/paste.js" lang="javascript"></script>
+    <script src="/static/paste.js"></script>
   </body>
 </html>

template/text-view.html

@@ -26,6 +26,6 @@
         repo
       </a>
     </footer>
-    <script src="/static/copy.js" lang="javascript"></script>
+    <script src="/static/copy.js"></script>
   </body>
 </html>

template/upload-short.html

@@ -28,6 +28,6 @@
         repo
       </a>
     </footer>
-    <script src="/static/copy.js" lang="javascript"></script>
+    <script src="/static/copy.js"></script>
   </body>
 </html>

template/upload.html

@@ -24,6 +24,6 @@
         repo
       </a>
     </footer>
-    <script src="/static/copy.js" lang="javascript"></script>
+    <script src="/static/copy.js"></script>
   </body>
 </html>

template/url-view.html

@@ -35,6 +35,6 @@
         repo
       </a>
     </footer>
-    <script src="/static/copy.js" lang="javascript"></script>
+    <script src="/static/copy.js"></script>
   </body>
 </html>