Merge pull request #835 from stan-dev/remove_example_models

Remove example models from test/integration

Author: bbbales2

Jenkinsfile

@@ -146,7 +146,7 @@ pipeline {
                                 cd cmdstan; make -j${env.PARALLEL} build; cd ..
                                 cp ../bin/stanc cmdstan/bin/stanc
                                 ./runPerformanceTests.py --runs=0 ../test/integration/good
-                                # ./runPerformanceTests.py --runs=0 example-models
+                                ./runPerformanceTests.py --runs=0 example-models
                                 """
                         }