fdo#61272: Do the mapping correctly both for WMF and EMF.

Turns out that for the WMF, we already had everything set up correctly, we
were just overwriting the right settings with default data again :-) - fix
that.

Includes the following commits:

* Revert "wmf-mm-text-1.diff: Fix WMF rendering, n#417818"
* Revert "wmf-mm-text.diff: Fix WMF rendering, n#417818"
* fdo#56886 EMF: Fixes some scaling problems of clipped regions, Twips

Change-Id: I7ff859246dbaea3868438d3632f9adc60fc4ee37
Reviewed-on: https://gerrit.libreoffice.org/6829
Reviewed-by: Andras Timar <andras.timar@collabora.com>
Tested-by: Andras Timar <andras.timar@collabora.com>