Update Documentation of Owner to reflect reality

Owner cannot create/delete a branch through the Web UI unless given the
Create Reference permission.

Change-Id: Idf07409560d1d3487e3699e13a9928810108d1eb
diff --git a/Documentation/access-control.txt b/Documentation/access-control.txt
index aa27f2b..3d132d3 100644
--- a/Documentation/access-control.txt
+++ b/Documentation/access-control.txt
@@ -559,8 +559,6 @@
 configuration.  Users who are members of an owner group can:
 
 * Change the project description
-* Create a branch via the ssh command link:cmd-create-branch.html['create-branch']
-* Create/delete a branch through the web UI
 * Grant/revoke any access rights, including `Owner`
 
 To get SSH branch access project owners must grant an access right to a group