Removing white segment from a svg image

I am designing an Arabic font for which I have created the glyphs using MetaFont and processed the MetaFont sources with MetaPost. As a result, I got an svg image for each of the glyph. There is one problem that I am facing and that is there is a white segment in some of these glyphs that is unpleasant and I would like to remove that white segment.

For instance, please have a look at my Arabic digit 9, as you can see on the top part of this digits, there is a circular-like white segment that I like to remove. How can I remove this unpleasant white segment in illustrator?