remove binutils 2.17 and 2.19

toolchain/binutils/Config.in

toolchain/binutils/Makefile

toolchain/binutils/patches/2.17/001-fix_avr32_compile

toolchain/binutils/patches/2.17/100-uclibc-conf.patch

toolchain/binutils/patches/2.17/110-arm-eabi-conf.patch

...ain/binutils/patches/2.17/300-001_ld_makefile_patch.patch

...ain/binutils/patches/2.17/300-006_better_file_error.patch

...inutils/patches/2.17/300-012_check_ldrunpath_length.patch

...n/binutils/patches/2.17/400-mips-ELF_MAXPAGESIZE-4k.patch

toolchain/binutils/patches/2.17/500-avr32.patch

.../binutils/patches/2.17/501-avr32-fix-pool-alignment.patch

toolchain/binutils/patches/2.17/601-cris-errormsg.patch

toolchain/binutils/patches/2.17/610-cris_target.patch

...in/binutils/patches/2.17/702-binutils-skip-comments.patch

toolchain/binutils/patches/2.19/110-arm-eabi-conf.patch

toolchain/binutils/patches/2.19/120-sh-conf.patch

...ain/binutils/patches/2.19/300-001_ld_makefile_patch.patch

...inutils/patches/2.19/300-012_check_ldrunpath_length.patch