Fix CA errors.

Author: grokys

src/GitHub.App/Services/EnterpriseCapabilitiesService.cs

@@ -14,17 +14,14 @@ namespace GitHub.Services
     public class EnterpriseCapabilitiesService : IEnterpriseCapabilitiesService
     {
         static readonly Version MinimumOAuthVersion = new Version("2.12.2");
-        readonly ISimpleApiClientFactory apiClientFactory;
         readonly IEnterpriseProbe probe;
         readonly IProgram program;
 
         [ImportingConstructor]
         public EnterpriseCapabilitiesService(
-            ISimpleApiClientFactory apiClientFactory,
             IEnterpriseProbe probe,
             IProgram program)
         {
-            this.apiClientFactory = apiClientFactory;
             this.probe = probe;
             this.program = program;
         }

src/GitHub.Exports.Reactive/Validation/ReactivePropertyValidator.cs

@@ -276,6 +276,8 @@ public static ReactivePropertyValidator<string> IfNullOrEmpty(this ReactivePrope
             return This.IfTrue(String.IsNullOrEmpty, errorMessage);
         }
 
+        [SuppressMessage("Microsoft.Usage", "CA1806:DoNotIgnoreMethodResults", MessageId = "System.UriBuilder",
+            Justification = "We're using UriBuilder to validate the URL because Uri.TryCreate fails if no scheme specified.")]
         public static ReactivePropertyValidator<string> IfNotUri(this ReactivePropertyValidator<string> This, string errorMessage)
         {
             return This.IfFalse(s =>