Use mattermost v5 module (#1192)

vendor/github.com/pborman/uuid/version1.go

@@ -5,7 +5,7 @@
 package uuid
 
 import (
-	"encoding/binary"
+	guuid "github.com/google/uuid"
 )
 
 // NewUUID returns a Version 1 UUID based on the current NodeID and clock
@@ -15,27 +15,9 @@ import (
 // SetClockSequence then it will be set automatically.  If GetTime fails to
 // return the current NewUUID returns nil.
 func NewUUID() UUID {
-	if nodeID == nil {
-		SetNodeInterface("")
+	gu, err := guuid.NewUUID()
+	if err == nil {
+		return UUID(gu[:])
 	}
-
-	now, seq, err := GetTime()
-	if err != nil {
-		return nil
-	}
-
-	uuid := make([]byte, 16)
-
-	time_low := uint32(now & 0xffffffff)
-	time_mid := uint16((now >> 32) & 0xffff)
-	time_hi := uint16((now >> 48) & 0x0fff)
-	time_hi |= 0x1000 // Version 1
-
-	binary.BigEndian.PutUint32(uuid[0:], time_low)
-	binary.BigEndian.PutUint16(uuid[4:], time_mid)
-	binary.BigEndian.PutUint16(uuid[6:], time_hi)
-	binary.BigEndian.PutUint16(uuid[8:], seq)
-	copy(uuid[10:], nodeID)
-
-	return uuid
+	return nil
 }