Remove UsbPowerCtrlDxe from betalm #626

Job	Run time
Image Build (mh2lm)	6m 3s
Image Build (betalm)	5m 33s
Image Build (nabu)	5m 25s
Image Build (vayu-huaxing)	5m 32s
Image Build (vayu-tianma)	7m 2s
Image Build (cepheus)	7m 1s
Image Build (hotdog)	5m 34s
Image Build (guacamole)	7m 37s
Image Build (beryllium-ebbg)	5m 50s
Image Build (beryllium-tianma)	5m 52s
Image Build (polaris)	5m 48s
Image Build (perseus)	5m 37s
Image Build (mona)	6m 25s
Image Build (lisa)	5m 43s
Image Build (cheeseburger)	5m 34s
	1h 30m 36s

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