Remove ;s from Python code

They keep getting copied around too...

Change-Id: I6562dc4d377e5e6d85e9b21cdb3d87b432c77d43
diff --git a/y2015/control_loops/python/claw.py b/y2015/control_loops/python/claw.py
index 4ca50e9..17ea700 100755
--- a/y2015/control_loops/python/claw.py
+++ b/y2015/control_loops/python/claw.py
@@ -64,7 +64,7 @@
     self.A, self.B = self.ContinuousToDiscrete(
         self.A_continuous, self.B_continuous, self.dt)
 
-    controlability = controls.ctrb(self.A, self.B);
+    controlability = controls.ctrb(self.A, self.B)
 
     print "Free speed is", self.free_speed * numpy.pi * 2.0 / 60.0 / self.G