Remove coveralls config file

Author: pitbulk

.coveralls.yml

@@ -15,4 +15,4 @@ script:
   - 'pep8 tests/src/OneLogin/saml2_tests/*.py demo-flask/*.py demo-django/*.py src/onelogin/saml2/*.py --config=tests/pep8.rc'
   - 'pyflakes src/onelogin/saml2 demo-django demo-flask tests/src/OneLogin/saml2_tests'
 
-after_success: 'coveralls --rcfile=.coveralls.yml'
+after_success: 'coveralls'