No need to verify log levels

cmd/ipfs-cluster-service/main.go

@@ -615,9 +615,6 @@ func setupLogLevel(debug bool, l string) error {
 			return errors.New("log level not in expected format \"identifier:loglevel\" or \"loglevel\"")
 		}
 
-		if !ipfscluster.IsLogLevel(lvl) {
-			return fmt.Errorf("%s is not a valid log level", lvl)
-		}
 		_, ok := compLogFacs[comp]
 		if ok {
 			fmt.Printf("overwriting existing %s log level\n", comp)

logging.go

@@ -1,8 +1,6 @@
 package ipfscluster
 
 import (
-	"strings"
-
 	logging "github.com/ipfs/go-log"
 )
 
@@ -70,14 +68,3 @@ func SetFacilityLogLevel(f, l string) {
 	*/
 	logging.SetLogLevel(f, l)
 }
-
-// IsLogLevel checks if given string is a valid log level.
-func IsLogLevel(s string) bool {
-	for _, level := range []string{"DEBUG", "CRITICAL", "ERROR", "WARNING", "NOTICE", "INFO"} {
-		if strings.ToUpper(s) == level {
-			return true
-		}
-	}
-
-	return false
-}