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.
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.