Related fdo#52639: Do not destroy Implementations with mutex locked
Related fdo#52639: Do not destroy Implementations with mutex locked

Erasing from data_ member maps can destroy contained Implementations, which in
turn releases the UNO objects referenced from there, which in turn can cause
XComponents to dispose, which in turn can call arbitrary code, so must not be
done with rMutex locked.  Witness the backtrace at
<https://bugs.freedesktop.org/attachment.cgi?id=65142> linked from fdo#52639
(where this fix appears otherwise unrelated to that issue's main topic).

Change-Id: If55a3841b761ec1d9a0ef61fe54784426c4ee442

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core