Remove any Perl related code from libslic3r

xs/src/libslic3r/TriangleMesh.hpp

@@ -1,7 +1,7 @@
 #ifndef slic3r_TriangleMesh_hpp_
 #define slic3r_TriangleMesh_hpp_
 
-#include <myinit.h>
+#include "libslic3r.h"
 #include <admesh/stl.h>
 #include <vector>
 #include "BoundingBox.hpp"
@@ -53,11 +53,6 @@ class TriangleMesh
     stl_file stl;
     bool repaired;
     
-    #ifdef SLIC3RXS
-    SV* to_SV();
-    void ReadFromPerl(SV* vertices, SV* facets);
-    #endif
-    
     private:
     void require_shared_vertices();
     friend class TriangleMeshSlicer;