fix(poly): have a much closer to working polytrope, still small divergence near core

src/poly/solver/private/polySolver.cpp

@@ -63,9 +63,6 @@ namespace laneEmden {
     }
 }
 
-// TODO: Come back to this and think of a better way to get the mesh file
-const std::string SPHERICAL_MESH = std::string(getenv("MESON_SOURCE_ROOT")) + "/src/resources/mesh/core.msh";
-
 PolySolver::PolySolver(double n, double order, mfem::Mesh& mesh_)
 : logger(logManager.getLogger("log")),
   n(n),