Quickfix: Remove deprecated providers from Restconf Application

Quickfix: Remove deprecated providers from Restconf Application

Jersey 1.17 has problem with multiple Entity providers,
which consumes same content-type and produces different
Entity class. In wiring phase it does not report any problems,
but in runtime it may select incorrect one, which
will result in IllegalArgumentException, which is not
reported.

So in order to unblock most of functionality, legacy
providers are disabled.

This will fix data-store access, but without
subsequent patches RPCs are not usable.

Change-Id: I860e162232d887d13629504421076495a50a075b
Signed-off-by: Vaclav Demcak <vdemcak@cisco.com>