[MGTL] Rm unused MeshNodeSearcher::getMeshID().

MeshGeoToolsLib/MeshNodeSearcher.cpp

@@ -238,9 +238,4 @@ MeshNodeSearcher const& MeshNodeSearcher::getMeshNodeSearcher(
     return *_mesh_node_searchers[mesh_id];
 }
 
-std::size_t MeshNodeSearcher::getMeshId() const
-{
-    return _mesh.getID();
-}
-
 }  // end namespace MeshGeoToolsLib

MeshGeoToolsLib/MeshNodeSearcher.h

@@ -140,11 +140,6 @@ public:
     MeshNodesAlongSurface& getMeshNodesAlongSurface(
         GeoLib::Surface const& sfc) const;
 
-    /**
-     * Get the mesh this searcher operates on.
-     */
-    std::size_t getMeshId() const;
-
     /**
      * Returns a (possibly new) mesh node searcher for the mesh.
      * A new one will be created, if it does not already exists.