Log Message:
librsvg-2.23.x doesn't come with the "rsvg" tool anymore which was
used in gxine build to convert svg into png. There is a replacement
"rsvg-convert" with different cmd line syntax, but it seems to me that
this is all unnecessary -- gxine can display the svg files as well.
So, to keep things simple, fix the PLIST to reflect the status quo
and drop the useless build dependency.