test/mgmt: remove unnecessary fib and fib manager references

Clean up in preperation for FibManager construction
changes to support configuration files.

refs: #1120

Change-Id: I0864c6048a906fd2a3a539c83e62754fc8936921
build: Fixes for the latest reorganizations in ndn-cpp-dev library

Change-Id: I7cdb1e680342f72d90da6bc41028388dc57a22c0