Refs #9408: Removed support for passing params as dicts in the oracle backend....

Refs #9408: Removed support for passing params as dicts in the oracle backend. Wasn't documented, didn't work, isn't necessary.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@9418 bcc190cf-cafb-0310-a4f2-bffc1f526a37