gcc/ChangeLog:
* doc/install/testing.rst: Remove anachronism about separate
source tarballs.
problems before you install and start using your new GCC.
First, you must have :ref:`downloaded the testsuites <downloading-the-source>`.
-These are part of the full distribution, but if you downloaded the
-'core' compiler plus any front ends, you must download the testsuites
-separately.
+These are included in the source tarball.
Second, you must have the testing tools installed. This includes
`DejaGnu <https://www.gnu.org/software/dejagnu/>`_, Tcl, and Expect;