Drop deprecated configuration values

- debugLogKey
- lastErrorKey

Passepartout/Sources/AppConstants.swift

@@ -49,8 +49,6 @@ class AppConstants {
 //            builder.debugLogFormat = "$Dyyyy-MM-dd HH:mm:ss.SSS$d $L $N.$F:$l - $M"
 //            builder.debugLogFormat = "$DHH:mm:ss$d $N.$F:$l - $M"
             builder.debugLogFormat = Log.debugFormat
-            builder.debugLogKey = "LastVPNLog"
-            builder.lastErrorKey = "LastVPNError"
             return builder.build()
         }
         

Passepartout/Sources/Model/ConnectionService.swift

@@ -280,20 +280,11 @@ class ConnectionService: Codable {
     }
     
     var vpnLastError: TunnelKitProvider.ProviderError? {
-        guard let key = baseConfiguration.lastErrorKey else {
-            return nil
-        }
-        guard let rawValue = defaults.string(forKey: key) else {
-            return nil
-        }
-        return TunnelKitProvider.ProviderError(rawValue: rawValue)
+        return baseConfiguration.lastError(in: appGroup)
     }
     
     func clearVpnLastError() {
-        guard let key = baseConfiguration.lastErrorKey else {
-            return
-        }
-        defaults.removeObject(forKey: key)
+        baseConfiguration.clearLastError(in: appGroup)
     }
     
 //    func eraseVpnLog() {

Passepartout/Sources/Model/Profiles/HostConnectionProfile.swift

@@ -60,8 +60,6 @@ class HostConnectionProfile: ConnectionProfile, Codable, Equatable {
         builder.mtu = configuration.mtu
         builder.shouldDebug = configuration.shouldDebug
         builder.debugLogFormat = configuration.debugLogFormat
-        builder.debugLogKey = configuration.debugLogKey
-        builder.lastErrorKey = configuration.lastErrorKey
 
         return builder.build()
     }

Passepartout/Sources/Model/Profiles/ProviderConnectionProfile.swift

@@ -120,8 +120,6 @@ class ProviderConnectionProfile: ConnectionProfile, Codable, Equatable {
         builder.mtu = configuration.mtu
         builder.shouldDebug = configuration.shouldDebug
         builder.debugLogFormat = configuration.debugLogFormat
-        builder.debugLogKey = configuration.debugLogKey
-        builder.lastErrorKey = configuration.lastErrorKey
 
         if let address = manualAddress {
             builder.prefersResolvedAddresses = true