`matrix.SwapOnVsync` does not support `framerate_fraction`

[ty-porter]

https://github.com/hzeller/rpi-rgb-led-matrix/blob/dd2d9395296b575a97e7cb46ae8cab3b67914d6d/bindings/python/rgbmatrix/core.pyx#L270

This was stubbed in 0.14.2 to avoid crashing on unrecognized arguments, but the functionality does not exist in RGBME