Revert "Merge branch 'ticket/supplementary-comments-on-motive' into 'master'"

This reverts merge request !855

src/Bundle/ChillMainBundle/Entity/User.php

@@ -613,14 +613,4 @@ class User implements UserInterface, \Stringable, PasswordAuthenticatedUserInter
 
         return $this;
     }
-
-    /**
-     * Check if the current object is an instance of User.
-     *
-     * @return bool returns true if the current object is an instance of User, false otherwise
-     */
-    public function isUser(): bool
-    {
-        return true;
-    }
 }