Revert "Fix the race between configuring cbr0 and restarting static pods"

pkg/util/util.go

@@ -198,20 +198,6 @@ func CompileRegexps(regexpStrings []string) ([]*regexp.Regexp, error) {
 	return regexps, nil
 }
 
-// Detects if using systemd as the init system
-// Please note that simply reading /proc/1/cmdline can be misleading because
-// some installation of various init programs can automatically make /sbin/init
-// a symlink or even a renamed version of their main program.
-// TODO(dchen1107): realiably detects the init system using on the system:
-// systemd, upstart, initd, etc.
-func UsingSystemdInitSystem() bool {
-	if _, err := os.Stat("/run/systemd/system"); err != nil {
-		return true
-	}
-
-	return false
-}
-
 // Writes 'value' to /proc/<pid>/oom_score_adj. PID = 0 means self
 func ApplyOomScoreAdj(pid int, value int) error {
 	if value < -1000 || value > 1000 {