Remove unnecessary TypedArray re-initialization in `FontFaceObject.createFontFaceRule`
Remove unnecessary TypedArray re-initialization in `FontFaceObject.createFontFaceRule`

The `this.data` property is, when defined, sent from the worker-thread as a `Uint8Array` and there's thus no reason to re-initialize the TypedArray here.
Note also the `FontFaceObject.createNativeFontFace` method just above, where we simply use `this.data` as-is.

The explanation for this code looking like it does is, as is often the case, for historical reasons. Originally we only supported `@font-face`, before the Font Loading API existed, and back then we also polyfilled TypedArrays (using regular Arrays) which should explain this particular line of code.

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