cc/gcc: remove now useless condition-variable

Both core pass-1 and -2 compilers are unconditionally built,
so we no longer require a condition variable.

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"