server: handle command line and env variables at one place. (#3975)

cmd/gateway-startup-msg.go

@@ -47,9 +47,7 @@ func printGatewayStartupMessage(apiEndPoints []string, accessKey, secretKey, bac
 	// SSL is configured reads certification chain, prints
 	// authority and expiry.
 	if globalIsSSL {
-		certs, err := readCertificateChain()
-		fatalIf(err, "Unable to read certificate chain")
-		printCertificateMsg(certs)
+		printCertificateMsg(globalPublicCerts)
 	}
 }