Drop coverage in travis tests

.travis.yml

@@ -13,7 +13,6 @@ install:
   - pip install $DJANGO 
   - pip install -e . --use-mirrors
   - pip install -r requirements.txt --use-mirrors
-  - pip install coverage==3.5.1 --use-mirrors
 
 script:
   - python setup.py test

setup.py

@@ -62,7 +62,7 @@ setup(
     author_email='tom@tomchristie.com',
     packages=get_packages('rest_framework'),
     package_data=get_package_data('rest_framework'),
-    test_suite='rest_framework.runtests.runcoverage.main',
+    test_suite='rest_framework.runtests.runtests.main',
     install_requires=[],
     classifiers=[
         'Development Status :: 4 - Beta',