[REVIEW 3-6] fdo#50975 crash in about dialog on RHEL-5

[Caolán McNamara]

So rsvg_handle_new_from_data calls rsvg_handle_close already it turns
out. In new versions of librsvg you can call rsvg_handle_close on a
handle safely as many times as you want, but in older versions like that
of RHEL-5 you can only call it once.

http://cgit.freedesktop.org/libreoffice/core/commit/?id=682cb83ed59233decbeeaff68c4d871442b58bb1

i.e. just drop rsvg_handle_close because rsvg_handle_new_from_data
already did it

C.