main/libuv: revert test for udp multicast join

This test is breaking on ppc64le and causes more issues:

https://github.com/libuv/libuv/issues/2468
https://github.com/clearlinux-pkgs/libuv/commit/a4cbe099b2a60d1598f35bcbf6641903c17ba7bf
7 jobs for !563 with main-libuv-test-revert-patch in 1 minute and 42 seconds (queued for 2 seconds)
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Status Job ID Name Coverage
  Lint
failed #5917
docker-alpine x86_64 allowed to fail
lint

00:00:20

 
  Build
passed #5922
docker-alpine ci-build aarch64
build-aarch64

00:01:15

passed #5923
docker-alpine ci-build armv7
build-armv7

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passed #5921
docker-alpine ci-build ppc64le
build-ppc64le

00:01:20

passed #5920
docker-alpine ci-build s390x
build-s390x

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passed #5919
docker-alpine ci-build x86
build-x86

00:01:20

passed #5918
docker-alpine ci-build x86_64
build-x86_64

00:01:18

 
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