Resolves: fdo#75408 go back to the old way of doing things

Revert "Resolves: rhbz#1012353 fdo#48846 allow starmath objects to be resized"

This reverts commit 1b717e5686f34c3ce798310a6216f7ea98fb2cd9.

Change-Id: Iaf8410fc1e5611cda04356d32e37ee25a7f59898