UPDATE 3-Property battle between CA Immo, Immofinanz fizzles out

Immofinanz dropped CA Immo counteroffer. * Deutsche Wohnen's Conwert takeover offer failed (Adds Immofinanz shareholder vote, CEO comment, shares). By Shadia Nasralla. VIENNA, April 17 (Reuters) - A third German-Austrian real estate battle fizzled ...