cc/gcc: remove svn source

Since we now have the opportunity to use a custom local directory/tarball
as the source for gcc, it no longer makes sense to retrieve gcc ourselves
from its subversion repository.

Cc: Bryan Hundven <bryanhundven@gmail.com>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>

# m68k specific configuration file

## depends on EXPERIMENTAL

##

## select ARCH_SUPPORTS_32

## select ARCH_DEFAULT_32

## select ARCH_DEFAULT_BE

## select ARCH_SUPPORTS_WITH_CPU

##

## help The m68k architecture