Docs: Remove double reference to copying answers file during installation
Docs: Remove double reference to copying answers file during installation

Change-Id: I855edfd50f521da6b7079aa2498f25e1b798eaca

bcrochet/instack-undercloud,dpkshetty/instack-undercloud,dmsimard/instack-undercloud,bcrochet/instack-undercloud,dmsimard/instack-undercloud,rdo-management/instack-undercloud,eprasad/instack-undercloud,dpkshetty/instack-undercloud,rdo-management/instack-undercloud,eprasad/instack-undercloud