fix tests

migrations/2_deploy_contracts.js

@@ -1,12 +1,9 @@
 module.exports = function(deployer) {
-  deployer.deploy(PullPaymentBid);
-  deployer.deploy(BadArrayUse);
-  deployer.deploy(ProofOfExistence);
   deployer.deploy(Ownable);
   deployer.deploy(Claimable);
   deployer.deploy(LimitBalance);
   if(deployer.network == 'test'){
     deployer.deploy(SecureTargetBounty);
     deployer.deploy(InsecureTargetBounty);
-  };
+  }
 };