gcc: remove version 4.8.0

toolchain/gcc/Config.in

toolchain/gcc/Config.version

toolchain/gcc/patches/4.8.0/010-documentation.patch

toolchain/gcc/patches/4.8.0/100-uclibc-conf.patch

toolchain/gcc/patches/4.8.0/200-musl.patch

toolchain/gcc/patches/4.8.0/800-arm_v5te_no_ldrd_strd.patch

toolchain/gcc/patches/4.8.0/810-arm-softfloat-libgcc.patch

toolchain/gcc/patches/4.8.0/820-libgcc_pic.patch

toolchain/gcc/patches/4.8.0/830-arm_unbreak_armv4t.patch

...ain/gcc/patches/4.8.0/840-armv4_pass_fix-v4bx_to_ld.patch

toolchain/gcc/patches/4.8.0/850-use_shared_libgcc.patch

toolchain/gcc/patches/4.8.0/860-uclibc_use_eh_frame.patch

toolchain/gcc/patches/4.8.0/870-ppc_no_crtsavres.patch

toolchain/gcc/patches/4.8.0/880-no_java_section.patch

toolchain/gcc/patches/4.8.0/900-bad-mips16-crt.patch

toolchain/gcc/patches/4.8.0/910-mbsd_multi.patch

toolchain/gcc/patches/4.8.0/920-specs_nonfatal_getenv.patch