cc/gcc: fix patches for 4.6.{0,1}

Remove the sparc part, as it touches code that does not exist in
those versions of gcc (it was added at 4.6.2).

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
CC: Florian Fainelli <f.fainelli@gmail.com>

 #!/bin/sh

 set -e

 printf "Running autoconf...\n"

 autoconf -Wall --force

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