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>

# Default test suite configuration

# Default DejaGnu configuration

DG_TOOLNAME = gcc

DG_TARGET_HOSTNAME = 127.0.0.1

DG_TARGET_USERNAME = root

# Default tests

DG_C_TESTS = 

DG_CPP_TESTS =