Inhibit insertion of mathml as a component, should always be an equation.


git-svn-id: svn+ssh://svn.abisource.com/svnroot/abiword/trunk@33820 bcba8976-2d24-0410-9c9c-aab3bd5fdfd6
Revert unwanted changes.


git-svn-id: svn+ssh://svn.abisource.com/svnroot/abiword/trunk@33821 bcba8976-2d24-0410-9c9c-aab3bd5fdfd6