Log Message:
rasqal: No need to inject a ac_cv_path_GTKDOC_CHECK_PATH, NFC

ac_cv_path_GTKDOC_CHECK_PATH isn't used by rasqal so don't inject it via
CONFIGURE_ENV. This was a copypasto from a similar devel/orc kludge related to
avoid picking up gtkdoc-* tools. NFC.