[librsvg/librsvg-2.40] Enable test again

[Federico Mena Quintero <federico src gnome org>]

commit f30913447a9594d8811cfceee21b0d1ea2af84f4
Author: Federico Mena Quintero <federico gnome org>
Date:   Wed Oct 4 10:10:45 2017 -0500

    Enable test again

 ...sform-ref.png => 587721-text-transform-ref.png} |  Bin 3910 -> 3910 bytes
 ...ext-transform.svg => 587721-text-transform.svg} |    0
 2 files changed, 0 insertions(+), 0 deletions(-)
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diff --git a/tests/fixtures/reftests/bugs/ignore-587721-text-transform.svg 
b/tests/fixtures/reftests/bugs/587721-text-transform.svg
similarity index 100%
rename from tests/fixtures/reftests/bugs/ignore-587721-text-transform.svg
rename to tests/fixtures/reftests/bugs/587721-text-transform.svg