Cherry pick PR #1512: Remove loader executable copy action for windows based modular platforms #890

Job	Run time
stub / initialize	44s
stub / docker-build-image	43s
stub / docker-unittest-image	0s
stub / stub_devel	5m 23s
stub / stub_debug	5m 15s
stub / stub_qa	4m 38s
stub / stub_gold	4m 17s
stub / ${{ matrix.name }}_${{ matrix.shard }}_test	0s
stub / ${{ matrix.name }}_on_device_${{ matrix.shard }}	0s
stub / on-host-unit-test-report	0s
	21m 0s

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