Refactor StatusMessage and remove ExternalLogin

BTCPayServer/Models/StoreViewModels/DerivationSchemeViewModel.cs

@@ -32,7 +32,6 @@ namespace BTCPayServer.Models.StoreViewModels
         public bool Confirmation { get; set; }
         public bool Enabled { get; set; } = true;
 
-        public string StatusMessage { get; internal set; }
         public KeyPath RootKeyPath { get; set; }
 
         [Display(Name = "Coldcard Wallet File")]

BTCPayServer/Models/StoreViewModels/LightningNodeViewModel.cs

@@ -21,7 +21,6 @@ namespace BTCPayServer.Models.StoreViewModels
             get;
             set;
         }
-        public string StatusMessage { get; set; }
         public string InternalLightningNode { get; internal set; }
         public bool SkipPortTest { get; set; }
         public bool Enabled { get; set; } = true;

BTCPayServer/Models/StoreViewModels/TokensViewModel.cs

@@ -53,11 +53,6 @@ namespace BTCPayServer.Models.StoreViewModels
         {
             get; set;
         }
-        public string StatusMessage
-        {
-            get;
-            set;
-        }
 
         [Display(Name = "API Key")]
         public string ApiKey { get; set; }

BTCPayServer/Models/StoreViewModels/UpdateChangellySettingsViewModel.cs

@@ -27,7 +27,5 @@ namespace BTCPayServer.Models.StoreViewModels
         public decimal AmountMarkupPercentage { get; set; } = new decimal(2);
 
         public bool Enabled { get; set; }
-
-        public string StatusMessage { get; set; }
     }
 }

BTCPayServer/Models/StoreViewModels/UpdateCoinSwitchSettingsViewModel.cs

@@ -24,7 +24,5 @@ namespace BTCPayServer.Models.StoreViewModels
             new SelectListItem { Value = "popup", Text = "Open in a popup" },
             new SelectListItem { Value = "inline", Text = "Embed inside Checkout UI " },
         };
-        
-        public string StatusMessage { get; set; }
     }
 }