Remove gitlab slaprunner resiliency test

See merge request !113
6 jobs for feat/promise_websocket in 0 seconds
Status Job ID Name Coverage
  External
failed SlapOS.Eggs.UnitTest-Master.Python2

00:13:51

failed SlapOS.Eggs.UnitTest-Master.Python2

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failed SlapOS.Eggs.UnitTest-Master.Python2

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failed SlapOS.Eggs.UnitTest-Master.Python2

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failed SlapOS.Eggs.UnitTest-Master.Python2

00:16:54

failed SlapOS.Eggs.UnitTest-Master.Python2

00:13:49