Bool + while loops to erase an element

[Jan Holesovsky]

Hi Julien,

Nice cleanup of the bool + while loops when erasing values, thanks for
that! :-)  [Like

http://cgit.freedesktop.org/libreoffice/core/commit/?id=591092d3f1409360be0be793462527b577539cc4

and others.]

I suppose we can make it even easier, like:

http://cgit.freedesktop.org/libreoffice/core/commit/?id=06c842301ddfbe9e0cc390bff8a0656d80dee2bd

Will you revisit those you have already done, please? :-)

Thank you a lot,
Kendy