Removes support for using the system clock on ChromeOS

sandbox/linux/seccomp-bpf-helpers/syscall_parameters_restrictions.h

Index: sandbox/linux/seccomp-bpf-helpers/syscall_parameters_restrictions.h
diff --git a/sandbox/linux/seccomp-bpf-helpers/syscall_parameters_restrictions.h b/sandbox/linux/seccomp-bpf-helpers/syscall_parameters_restrictions.h
index 9eb35d10e02e2182cbbab1a08b195312356a7d1d..b96fe20e35f655db990905366b122346739d42ba 100644
--- a/sandbox/linux/seccomp-bpf-helpers/syscall_parameters_restrictions.h
+++ b/sandbox/linux/seccomp-bpf-helpers/syscall_parameters_restrictions.h
@@ -92,7 +92,6 @@ SANDBOX_EXPORT bpf_dsl::ResultExpr RestrictGetrusage();
 // access to arbitrary per-{process,thread} CPU-time clock IDs (such as those
 // returned by {clock,pthread}_getcpuclockid), which can leak information
 // about the state of the host OS.
-// On Chrome OS, base::TraceTicks::kClockSystemTrace is also allowed.
 SANDBOX_EXPORT bpf_dsl::ResultExpr RestrictClockID();
 
 }  // namespace sandbox.