cc/gcc: fix companion libs selection

Cset #15eedf548d33 (cc/gcc: add preliminray support for 4.8) left a
lingering 'select CLOOG_NEEDED', which should have been removed.

Fix that.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>

 #!/bin/sh

 set -e

 printf "Running autoconf...\n"

 autoconf -Wall --force

 printf "Done. You may now run:\n    ./configure\n"