Remove not used using declaration This CL removes a not used using declaration which will cause a warning when compiled with -Wunused-local-typedef under gcc. Change-Id: Ie4cfd5d1fed9bee860e387545e60d92d257da4f4
Ceres Solver is an open source C++ library for modeling and solving large, complicated optimization problems. It is a feature rich, mature and performant library which has been used in production at Google since 2010. Ceres Solver can solve two kinds of problems.
Please see ceres-solver.org for more information.