removed warning

apps/openmw/mwmechanics/pathfinding.cpp

@@ -278,7 +278,6 @@ namespace MWMechanics
         const ESM::Pathgrid::Point &nextPoint = *mPath.begin();
         float directionX = nextPoint.mX - x;
         float directionY = nextPoint.mY - y;
-        float directionResult = sqrt(directionX * directionX + directionY * directionY);
 
         return Ogre::Math::ATan2(directionX,directionY).valueDegrees();
     }