delete ws connection alert after reconnection #1035

Job	Run time
build	2m 13s
Julia 1.6 - ubuntu-latest - x64	4m 18s
Julia 1.6 - macOS-latest - x64	5m 55s
Julia 1.6 - windows-latest - x64	14m 51s
Julia 1 - ubuntu-latest - x64	5m 51s
Julia 1 - macOS-latest - x64	6m 24s
Julia 1 - windows-latest - x64	6m 47s
Julia nightly - ubuntu-latest - x64	5m 51s
Julia nightly - macOS-latest - x64	6m 37s
Julia nightly - windows-latest - x64	6m 58s
	1h 5m 45s

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