remove readelf from helptext
remove readelf from helptext

readelf was removed

Signed-off-by: Bernhard Reutner-Fischer <ce1ac9e9ad16abccd7821f371ad381197b4768ac@gmail.com>

brgl/uclibc-ng,OpenInkpot-archive/iplinux-uclibc,foss-for-synopsys-dwc-arc-processors/uClibc,hjl-tools/uClibc,majek/uclibc-vx32,atgreen/uClibc-moxie,kraj/uclibc-ng,ysat0/uClibc,ddcc/klee-uclibc-0.9.33.2,waweber/uclibc-clang,groundwater/uClibc,hwoarang/uClibc,wbx-github/uclibc-ng,wbx-github/uclibc-ng,ysat0/uClibc,brgl/uclibc-ng,czankel/xtensa-uclibc,hwoarang/uClibc,hjl-tools/uClibc,ndmsystems/uClibc,ndmsystems/uClibc,ysat0/uClibc,ddcc/klee-uclibc-0.9.33.2,foss-xtensa/uClibc,ffainelli/uClibc,hjl-tools/uClibc,czankel/xtensa-uclibc,OpenInkpot-archive/iplinux-uclibc,foss-for-synopsys-dwc-arc-processors/uClibc,kraj/uclibc-ng,ndmsystems/uClibc,groundwater/uClibc,czankel/xtensa-uclibc,ysat0/uClibc,wbx-github/uclibc-ng,ffainelli/uClibc,atgreen/uClibc-moxie,m-labs/uclibc-lm32,skristiansson/uClibc-or1k,ddcc/klee-uclibc-0.9.33.2,atgreen/uClibc-moxie,foss-for-synopsys-dwc-arc-processors/uClibc,skristiansson/uClibc-or1k,groundwater/uClibc,hjl-tools/uClibc,hwoarang/uClibc,OpenInkpot-archive/iplinux-uclibc,ffainelli/uClibc,waweber/uclibc-clang,kraj/uClibc,majek/uclibc-vx32,foss-xtensa/uClibc,czankel/xtensa-uclibc,waweber/uclibc-clang,m-labs/uclibc-lm32,m-labs/uclibc-lm32,brgl/uclibc-ng,foss-xtensa/uClibc,kraj/uClibc,kraj/uClibc,kraj/uclibc-ng,atgreen/uClibc-moxie,brgl/uclibc-ng,skristiansson/uClibc-or1k,mephi42/uClibc,ndmsystems/uClibc,groundwater/uClibc,mephi42/uClibc,waweber/uclibc-clang,foss-xtensa/uClibc,ffainelli/uClibc,skristiansson/uClibc-or1k,groundwater/uClibc,mephi42/uClibc,foss-for-synopsys-dwc-arc-processors/uClibc,ffainelli/uClibc,wbx-github/uclibc-ng,OpenInkpot-archive/iplinux-uclibc,kraj/uclibc-ng,m-labs/uclibc-lm32,hwoarang/uClibc,majek/uclibc-vx32,ddcc/klee-uclibc-0.9.33.2,hjl-tools/uClibc,kraj/uClibc,majek/uclibc-vx32,mephi42/uClibc