no need to run sage test again

Author: isuruf

bin/test_travis.sh

@@ -16,10 +16,6 @@ mkdir -p empty && cd empty
 python $PYTHON_SOURCE_DIR/bin/test_python.py
 cd ..
 
-if [[ "${WITH_SAGE}" == "yes" ]]; then
-    sage -t $PYTHON_SOURCE_DIR/symengine/tests/test_sage.py
-fi
-
 if [[ "${TRIGGER_FEEDSTOCK}" == "yes" ]]; then
     cd $PYTHON_SOURCE_DIR
     ./bin/trigger_feedstock.sh