Removed ZTable code

xs/src/ZTable.hpp

@@ -1,23 +0,0 @@
-#ifndef slic3r_ZTable_hpp_
-#define slic3r_ZTable_hpp_
-
-#include <vector>
-
-namespace Slic3r {
-
-class ZTable
-{
-    public:
-    ZTable(std::vector<unsigned int>* z_array);
-    std::vector<unsigned int> get_range(unsigned int min_z, unsigned int max_z);
-    std::vector<unsigned int> z;
-};
-
-ZTable::ZTable(std::vector<unsigned int>* ztable) :
-    z(*ztable)
-{
-}
-
-}
-
-#endif