fix building when WITH_PSD is OFF, stub is not needed afterall

git-svn-id: https://svn.blender.org/svnroot/bf-blender/trunk/blender@60622 954f8c5b-7b00-dc11-b283-0030488c597c
fix for building with OPENJPEG after PSD commit

reported via email, patch by PerfectionCat

git-svn-id: https://svn.blender.org/svnroot/bf-blender/trunk/blender@60623 954f8c5b-7b00-dc11-b283-0030488c597c