Clean old files in triqs/gf/local

  deleted:    triqs/gf/local/OLD/GF_Bloc_Base.cpp
  deleted:    triqs/gf/local/OLD/GF_Bloc_Base.hpp
  deleted:    triqs/gf/local/OLD/GF_Bloc_ImFreq.cpp
  deleted:    triqs/gf/local/OLD/GF_Bloc_ImFreq.hpp
  deleted:    triqs/gf/local/OLD/GF_Bloc_ImLegendre.cpp
  deleted:    triqs/gf/local/OLD/GF_Bloc_ImLegendre.hpp
  deleted:    triqs/gf/local/OLD/GF_Bloc_ImTime.cpp
  deleted:    triqs/gf/local/OLD/GF_Bloc_ImTime.hpp
  deleted:    triqs/gf/local/OLD/GF_Bloc_ReFreq.cpp
  deleted:    triqs/gf/local/OLD/GF_Bloc_ReFreq.hpp
  deleted:    triqs/gf/local/OLD/GF_Bloc_ReTime.cpp
  deleted:    triqs/gf/local/OLD/GF_Bloc_ReTime.hpp
  deleted:    triqs/gf/local/OLD/GF_C.hpp
  deleted:    triqs/gf/local/OLD/MeshGF.cpp
  deleted:    triqs/gf/local/OLD/MeshGF.hpp
  deleted:    triqs/gf/local/OLD/TailGF.cpp
  deleted:    triqs/gf/local/OLD/TailGF.hpp
  deleted:    triqs/gf/local/OLD/fourier_matsubara.hpp
  deleted:    triqs/gf/local/OLD/poub.hpp
  deleted:    triqs/gf/local/no-built/fourier_real.cpp
  deleted:    triqs/gf/local/no-built/fourier_real.hpp