Removed logging, returned other tests to .travis.yml
diff --git a/tools/run_tests/build_python.sh b/tools/run_tests/build_python.sh
index 770dc9d..de63308 100755
--- a/tools/run_tests/build_python.sh
+++ b/tools/run_tests/build_python.sh
@@ -34,6 +34,7 @@
 cd $(dirname $0)/../..
 
 root=`pwd`
+rm -rf python2.7_virtual_environment
 virtualenv -p /usr/bin/python2.7 python2.7_virtual_environment
 source python2.7_virtual_environment/bin/activate
 pip install enum34==1.0.4 futures==2.2.0 protobuf==3.0.0-alpha-1