LArConditionsTest: Remove unneeded EventInfo dependency.
TestLArConditionsTool was doing a SG retrieve() of xAODEventInfo in initialize (!). But this was never used, so just remove it completely. Also remove a now-unused post.sh script.
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TestLArConditionsTool was doing a SG retrieve() of xAODEventInfo in initialize (!). But this was never used, so just remove it completely. Also remove a now-unused post.sh script.