Remove doc saying TAYGA will be auto-built

Now that TAYGA is avaiable in EPEL, it is better to point people at that
instead of building TAYGA from source. In commit 18dca08 the build from source
functionality was removed. Update documentation accordingly.

README.pod

@@ -87,9 +87,9 @@ of B<clatd> and its dependencies:
 
 This will install B<clatd> to /usr/sbin, plus install systemd, upstart, and/or
 NetworkManager scripts if your distribution appears to be using them, and
-install all the dependencies. Note that TAYGA isn't available in RPM format,
-so on RedHat/Fedora the installdeps target will install gcc and attempt to
-compile TAYGA from source.
+install all the dependencies. Note that TAYGA isn't available in all RPM-based
+distros (in particular RHEL and its clones). It is however available in EPEL
+(see L<https://fedoraproject.org/wiki/EPEL>).
 
 =head1 CONFIGURATION