tox.ini: remove duplicate command definitions (#430)

Fixes #428.

Author: steenzout

tox.ini

@@ -39,11 +39,9 @@ whitelist_externals =
     sh
 
 commands =
-    sqlite: py.test --ds=pytest_django_test.settings_sqlite --strict -r fEsxXw {posargs:tests}
-    sqlite_file: py.test --ds=pytest_django_test.settings_sqlite_file --strict -r fEsxXw {posargs:tests}
-    mysql_myisam: py.test --ds=pytest_django_test.settings_mysql_myisam --strict -r fEsxXw {posargs:tests}
     checkqa: flake8 --version && flake8 --show-source --statistics
     mysql_innodb: py.test --ds=pytest_django_test.settings_mysql_innodb --strict -r fEsxXw {posargs:tests}
+    mysql_myisam: py.test --ds=pytest_django_test.settings_mysql_myisam --strict -r fEsxXw {posargs:tests}
     postgres: py.test --ds=pytest_django_test.settings_postgres --strict -r fEsxXw {posargs:tests}
     sqlite: py.test --ds=pytest_django_test.settings_sqlite --strict -r fEsxXw {posargs:tests}
     sqlite_file: py.test --ds=pytest_django_test.settings_sqlite_file --strict -r fEsxXw {posargs:tests}