Revert "The AddSecureRemoteProvider function didn't add secretKeyring to the remoteProvider struct."

This reverts commit ca00a9b4f78a0bf982b54e8a5689fa6a142ce0f9.
diff --git a/viper.go b/viper.go
index 2b651f8..d95ca28 100644
--- a/viper.go
+++ b/viper.go
@@ -286,7 +286,6 @@
 			endpoint: endpoint,
 			provider: provider,
 			path:     path,
-			secretKeyring: secretkeyring,
 		}
 		if !v.providerPathExists(rp) {
 			v.remoteProviders = append(v.remoteProviders, rp)