get rid of old gcc versions

toolchain/gcc/common.mk

toolchain/gcc/patches/4.3.3/100-uclibc-conf.patch

toolchain/gcc/patches/4.3.3/104-gnuhurd-uclibc-conf.patch

toolchain/gcc/patches/4.3.3/105-libtool.patch

toolchain/gcc/patches/4.3.3/106-fix_linker_error.patch

toolchain/gcc/patches/4.3.3/301-missing-execinfo_h.patch

toolchain/gcc/patches/4.3.3/302-c99-snprintf.patch

...chain/gcc/patches/4.3.3/305-libmudflap-susv3-legacy.patch

toolchain/gcc/patches/4.3.3/400-arm_register_fix.patch

toolchain/gcc/patches/4.3.3/410-fix_pr37436.patch

toolchain/gcc/patches/4.3.3/420-fix_pr26515.patch

toolchain/gcc/patches/4.3.3/810-arm-softfloat-libgcc.patch

toolchain/gcc/patches/4.3.3/820-libgcc_pic.patch

toolchain/gcc/patches/4.3.3/910-mbsd_multi.patch

...cc/patches/4.3.3/993-arm_insn-opinit-RTX_CODE-fixup.patch

toolchain/gcc/patches/4.3.3/995-short-enums.diff

...chain/gcc/patches/4.3.3/998-gcc-4.3.0-fix-header.00.patch

toolchain/gcc/patches/4.3.3/999-coldfire.patch

toolchain/gcc/patches/4.3.4/100-uclibc-conf.patch

toolchain/gcc/patches/4.3.4/104-gnuhurd-uclibc-conf.patch