remove unused instructions
remove unused instructions

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