Cherry pick PR #3118: Remove some Cobalt customizations from //media #78

Job	Run time
raspi-2 / initialize	41s
raspi-2-skia / initialize	37s
raspi-2-skia / docker-build-image	1m 10s
raspi-2-skia / docker-unittest-image	0s
raspi-2 / docker-build-image	1m 7s
raspi-2 / docker-unittest-image	0s
raspi-2-skia / raspi-2-skia_devel	8m 20s
raspi-2-skia / raspi-2-skia_debug	12m 9s
raspi-2-skia / raspi-2-skia_qa	8m 0s
raspi-2-skia / raspi-2-skia_gold	7m 15s
raspi-2 / raspi_devel	8m 39s
raspi-2 / raspi_debug	13m 25s
raspi-2 / raspi_qa	8m 2s
raspi-2 / raspi_gold	7m 23s
raspi-2 / sbversion-15_devel	9m 0s
raspi-2 / sbversion-15_debug	11m 39s
raspi-2 / sbversion-15_qa	8m 26s
raspi-2 / sbversion-15_gold	7m 27s
raspi-2-skia / ${{ matrix.name }}_${{ matrix.shard }}_test	0s
raspi-2-skia / ${{ matrix.name }}_on_device_${{ matrix.shard }}	0s
raspi-2 / ${{ matrix.name }}_${{ matrix.shard }}_test	0s
raspi-2 / ${{ matrix.name }}_on_device_${{ matrix.shard }}	0s
	1h 53m 20s

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