Cleaned up some compile-time warnings.

src/BulletDynamics/ConstraintSolver/btContactConstraint.cpp

@@ -397,4 +397,5 @@ float resolveSingleFrictionEmpty(
 	const btContactSolverInfo& solverInfo)
 {
 	return 0.f;
-};
+};
+

src/BulletDynamics/Dynamics/btDiscreteDynamicsWorld.cpp

@@ -778,4 +778,5 @@ void	btDiscreteDynamicsWorld::setConstraintSolver(btConstraintSolver* solver)
 	}
 	m_ownsConstraintSolver = false;
 	m_constraintSolver = solver;
-}
+}
+