zammad: Entferne ungenutzten Patch

files/ldap-user-filter.patch

@@ -1,19 +0,0 @@
---- lib/ldap/user.rb.orig       2021-07-28 23:16:02.518958920 +0200
-+++ lib/ldap/user.rb    2021-07-28 22:47:00.991810209 +0200
-@@ -95,7 +95,7 @@
-     def valid?(username, password)
-       bind_success = @ldap.connection.bind_as(
-         base:     @ldap.base_dn,
--        filter:   "(#{login_attribute}=#{username})",
-+        filter:   @user_filter ? "(&(#{login_attribute}=#{username})#{@user_filter})" : "(#{login_attribute}=#{username})",
-         password: password
-       )
- 
-@@ -179,6 +179,7 @@
- 
-       @uid_attribute = config[:uid_attribute]
-       @filter        = config[:filter]
-+      @user_filter   = config[:user_filter]
-     end
-   end
- end