- Remove the requires_ge against librasqal1: it's been 15 years
that librasqal1 changed to librasqal2. Due to requires_ge simply
ignoring the dep if the package cannot be found, this was
effectively a NOP for the last 15 years - and as nobody seemed to
miss it, the autodep of RPM seems good enough.

For reference: librasqal changed from .so.1 to .so.2 with
https://build.opensuse.org/package/rdiff/openSUSE:Factory/rasqal?linkrev=base&rev=8