IVersionControl: Remove a TODO already done

Change-Id: Ia53410e3823a4d16c73f7c634b02c841087702d8
Reviewed-by: Eike Ziller <eike.ziller@digia.com>
IVersionControl: Remove parent argument

Never assigned

Change-Id: If5075210226c9d4efbf2b550a5587e5f60fb8d16
Reviewed-by: Eike Ziller <eike.ziller@digia.com>
Git: Fix wrong variable name

Change-Id: Ie79fddadc6835805f1fa6e811592c30cf32e5c9c
Reviewed-by: Eike Ziller <eike.ziller@digia.com>