delete redundant else

src/server/views/admin/app.html

@@ -105,7 +105,7 @@
                      name="settingForm[app:fileUpload]"
                      value="1"
                      {% if settingForm['app:fileUpload'] %}checked{% endif %}
-                     {% if not isUploadable() %}disabled="disabled"{% else %}{% endif %}>
+                     {% if not isUploadable() %}disabled="disabled"{% endif %}>
               <label for="cbFileUpload">
                 {{ t("app_setting.enable_files_except_image") }}
               </label>