sandbox-seccomp-filter: remove duplicate SC_ALLOW(__NR_clock_gettime64)

The syscall is already permitted at line 297 in its own ifdef guard.
No functional change.

Author: manfred-kaiser

sandbox-seccomp-filter.c

@@ -381,9 +381,6 @@ static const struct sock_filter preauth_insns[] = {
 #ifdef __NR_clock_nanosleep_time64
 	SC_ALLOW(__NR_clock_nanosleep_time64),
 #endif
-#ifdef __NR_clock_gettime64
-	SC_ALLOW(__NR_clock_gettime64),
-#endif
 #ifdef __NR__newselect
 	SC_ALLOW(__NR__newselect),
 #endif