Removed empty golden.pb_type.xml file

Signed-off-by: Grzegorz Latosinski <glatosinski@antmicro.com>
diff --git a/tests/vtr/lutff-pair/ff/golden.pb_type.xml b/tests/vtr/lutff-pair/ff/golden.pb_type.xml
deleted file mode 100644
index e69de29..0000000
--- a/tests/vtr/lutff-pair/ff/golden.pb_type.xml
+++ /dev/null