Remove links to deleted screenshots

doc/user/project/protected_branches.md

@@ -223,15 +223,11 @@ To protect a new branch and enable Code Owner's approval:
 1. Scroll down to **Protect a branch**, select a **Branch** or wildcard you'd like to protect, select who's **Allowed to merge** and **Allowed to push**, and toggle the **Require approval from code owners** slider.
 1. Click **Protect**.
 
-![Code Owners approval - new protected branch](img/code_owners_approval_new_protected_branch_v13_10.png)
-
 To enable Code Owner's approval to branches already protected:
 
 1. Navigate to your project's **Settings > Repository** and expand **Protected branches**.
 1. Scroll down to **Protected branch** and toggle the **Code owner approval** slider for the chosen branch.
 
-![Code Owners approval - branch already protected](img/code_owners_approval_protected_branch_v13_10.png)
-
 When enabled, all merge requests targeting these branches require approval
 by a Code Owner per matched rule before they can be merged.
 Additionally, direct pushes to the protected branch are denied if a rule is matched.