Remove the clearCurrentTape method

[osander1]

What it did was zeroing out the ADOLC_CURRENT_DATE_INFOS and ADOLC_CURRENT_TAPE_INFOS_FALLBACK objects. However, it did this in a rather convoluted way: By creating a new object (which is zeroed because its constructor calls initTapeInfos) and then assigning that object.

However, it is much simpler to call initTapeInfos directly for ADOLC_CURRENT_DATE_INFOS(_FALLBACK), and this is what this patch does. The clearCurrentTape method becomes obsolete and is removed.

[CLAassistant]

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