This reverts commit d256dbed:

For one, the new css.chart2.XTitle2 looked unfinished, in that it transfered the
direct properties of the old-style css.chart2.Title service into attributes, but
left out all the properties inherited by the old-style service from
css.style.ParagraphProperties, css.drawing.FillProperties,
css.drawing.LineProperties (and that missing FIXME css.layout.LayoutElement,
whatever that is supposed to be).  This needs more thought, to either make
available all propertiers as attributes, or none.

For another, this broke JunitTest_chart2_unoapi (sch.ChXChartDocument,
sch.ChartTitle), for hard-to-debug reasons.

Conflicts:
	chart2/source/model/main/Title.cxx
	chart2/source/model/main/Title.hxx
	offapi/com/sun/star/chart2/XTitle2.idl
	sc/source/filter/inc/xlchart.hxx

Change-Id: I4747208a13984904d0e409ea49a73b0f667c86c7