Remove usages of no-op POEMs (libevent) #7508

Job	Run time
android-arm64 / initialize	32s
android-arm / initialize	32s
android-x86 / initialize	35s
android-arm / docker-build-image	1m 15s
android-arm / docker-unittest-image	0s
android-arm64 / docker-build-image	1m 11s
android-arm64 / docker-unittest-image	0s
android-x86 / docker-build-image	1m 13s
android-x86 / docker-unittest-image	0s
android-arm64 / arm64_devel	30m 28s
android-arm64 / arm64_debug	29m 9s
android-arm64 / arm64_qa	8m 8s
android-arm64 / arm64_gold	7m 46s
android-x86 / x86_devel	20m 4s
android-x86 / x86_debug	16m 42s
android-x86 / x86_qa	8m 33s
android-x86 / x86_gold	8m 16s
android-arm / arm_devel	28m 51s
android-arm / arm_debug	33m 0s
android-arm / arm_qa	8m 45s
android-arm / arm_gold	8m 34s
android-x86 / ${{ matrix.name }}_${{ matrix.shard }}_test	0s
android-x86 / x86_on_device_0	25m 49s
android-x86 / x86_on_device_1	12m 59s
android-x86 / x86_on_device_2	8m 44s
android-x86 / x86_on_device_3	15m 50s
android-x86 / x86_on_device_black_box_test	13m 38s
android-arm64 / ${{ matrix.name }}_${{ matrix.shard }}_test	0s
android-arm64 / arm64_on_device_0	34m 22s
android-arm64 / arm64_on_device_1	33m 29s
android-arm64 / arm64_on_device_2	38m 29s
android-arm64 / arm64_on_device_3	30m 30s
android-arm64 / arm64_on_device_black_box_test	33m 21s
android-arm / arm_on_device_0	39m 2s
android-arm / arm_on_device_1	34m 19s
android-arm / arm_on_device_2	37m 18s
android-arm / arm_on_device_3	34m 17s
android-arm / arm_on_device_black_box_test	14m 57s
android-arm / ${{ matrix.name }}_${{ matrix.shard }}_test	0s
	10h 20m 38s

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