[1.2.X] Fixed #15141 - remove some deprecated storage engines from the MySQL...

[1.2.X] Fixed #15141 - remove some deprecated storage engines from the MySQL notes; thanks mariuz for the suggestion.

Backport of r15282 from trunk.

git-svn-id: http://code.djangoproject.com/svn/django/branches/releases/1.2.X@15283 bcc190cf-cafb-0310-a4f2-bffc1f526a37