Remove prototypes that are in kernel_sigaction.h already
Remove prototypes that are in kernel_sigaction.h already

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