REMOVE AGAIN: Introduce some mistakes that should be caught by QL4QL.

Author: michaelnebel

csharp/ql/lib/semmle/code/csharp/exprs/Creation.qll

@@ -177,6 +177,7 @@ class ElementInitializer extends MethodCall {
  *   }
  * }
  * ```
+ * Introduce a specific spelling error: abbout
  */
 class ObjectCreation extends Call, LateBindableExpr, @object_creation_expr {
   /** Gets the type of the newly created object. */

csharp/ql/src/Bad Practices/UseOfHtmlInputHidden.ql

@@ -3,7 +3,6 @@
  * @description Finds uses of hidden fields on forms
  * @kind problem
  * @problem.severity recommendation
- * @security-severity 7.5
  * @precision medium
  * @id cs/web/html-hidden-input
  * @tags security