fix(non linear font scaling): avoid trying to apply non-linear font scaling to...

fix(non linear font scaling): avoid trying to apply non-linear font scaling to apps in compatibility mode

This reverts an earlier change that may not have been fully thought out, but now has been fully and irrevocably thought out.

Fix: 265695259
Test: manual; see bug for steps
Change-Id: If808aaa111a21b13a8d56af3fcd47ad31f2c14ed