Convert code to utility or extension method

Is it possible to simplifing this piece of code with some static utility or extension method?
cachedDisplayInitialPinCodeSequence
    .SetAutoKill(false)
    .OnKill(() => cachedDisplayInitialPinCodeSequence = null);

cachedShowCorrectValidationStatusSequence
    .SetAutoKill(false)
    .OnKill(() => cachedShowCorrectValidationStatusSequence = null);
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