get_syscall_result: remove redundant ifdefs
get_syscall_result: remove redundant ifdefs

As get_regs() is now guaranteed to fetch registers when either
ARCH_REGS_FOR_GETREGSET or ARCH_REGS_FOR_GETREGS is defined, we can
safely replace all checks for architectures where these macros are defined
with a single check for these macros.

* syscall.c (get_syscall_result): Check for [ARCH_REGS_FOR_GETREGSET ||
ARCH_REGS_FOR_GETREGS].  Remove all checks for architectures where
nothing has to be done after get_regs().

geofft/strace,cuviper/strace,YUPlayGodDev/platform_external_strace,geekboxzone/mmallow_external_strace,Saruta/strace,kapdop/android_external_strace,vrastogi/strace,geekboxzone/mmallow_external_strace,Infinitive-OS/platform_external_strace,geekboxzone/mmallow_external_strace,cuviper/strace,cuviper/strace,vrastogi/strace,Saruta/strace,bigzz/strace_android,Distrotech/strace,vrastogi/strace,cuviper/strace,TeamExodus/external_strace,bigzz/strace_android,YUPlayGodDev/platform_external_strace,Infinitive-OS/platform_external_strace,Yu-AndroidM/android_external_strace,AOSP-YU/platform_external_strace,geekboxzone/mmallow_external_strace,kapdop/android_external_strace,YUPlayGodDev/platform_external_strace,Yu-AndroidM/android_external_strace,vrastogi/strace,MonkeyZZZZ/platform_external_strace,bigzz/strace_android,Saruta/strace,geekboxzone/mmallow_external_strace,Yu-AndroidM/android_external_strace,TeamExodus/external_strace,Infinitive-OS/platform_external_strace,MonkeyZZZZ/platform_external_strace,MonkeyZZZZ/platform_external_strace,geofft/strace,Saruta/strace,Distrotech/strace,AOSP-YU/platform_external_strace,bigzz/strace_android,cuviper/strace,Saruta/strace,Infinitive-OS/platform_external_strace,Infinitive-OS/platform_external_strace,kapdop/android_external_strace,YUPlayGodDev/platform_external_strace,geofft/strace,MonkeyZZZZ/platform_external_strace,Distrotech/strace,TeamExodus/external_strace,geofft/strace,Distrotech/strace,vrastogi/strace,YUPlayGodDev/platform_external_strace,AOSP-YU/platform_external_strace,TeamExodus/external_strace,kapdop/android_external_strace,MonkeyZZZZ/platform_external_strace,Yu-AndroidM/android_external_strace,Distrotech/strace,TeamExodus/external_strace,AOSP-YU/platform_external_strace,kapdop/android_external_strace,AOSP-YU/platform_external_strace,geofft/strace,Yu-AndroidM/android_external_strace,bigzz/strace_android