Fixed compiler warning.

git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/trunk@11555 178a84e3-b1eb-0310-8ba1-8eac791a3b58

src/karts/cannon_animation.cpp

@@ -64,7 +64,6 @@ CannonAnimation::CannonAnimation(AbstractKart *kart, Ipo *ipo)
 CannonAnimation::~CannonAnimation()
 {
     delete m_curve;
-    float epsilon = 0.5f * m_kart->getKartHeight();
 
     btTransform pos;
     pos.setOrigin(m_kart->getXYZ());