[Solved] In FontBook, how do I re-enable the “…Remove Font Family?” warning?

nicheese Asks: In FontBook, how do I re-enable the “…Remove Font Family?” warning?
As it turns out, the pop-up warning before removing a font family in FontBook is quite handy for accidental clicks. After choosing to not show the warning message previously, how do I re-enable this function? There seems to be nothing in FontBook prefences that addresses this.

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