diff --git a/pmc/cube.cc b/pmc/cube.cc
--- a/pmc/cube.cc
+++ b/pmc/cube.cc
@@ -78,11 +78,6 @@
 
 void Cube::show ()
 {
-    /*
-     * Implement some Sanity Checks
-     */
-    int height = surface->getHeight ();
-
     surface->drawLine (P[0]->X (), P[0]->Y (), P[1]->X (), P[1]->Y ());
     surface->drawLine (P[3]->X (), P[3]->Y (), P[2]->X (), P[2]->Y ());
     surface->drawLine (P[2]->X (), P[2]->Y (), P[1]->X (), P[1]->Y ());