No. But unless you're using fallback features, it shouldn't be a problem for your solution. See here:

http://sitecore.stackexchange.com/questions/190/are-there-any-issues-with-having-multiple-language-versions-of-templates-and-tem

If you want to remove language versions you don't need, this was answered here:

http://sitecore.stackexchange.com/questions/574/how-to-remove-a-language-version-of-a-data-template