get rid of code warnings

Author: yugangw-msft

src/CLU/Commands.Common.Authentication/Authentication/UserTokenProvider.cs

@@ -107,7 +107,6 @@ private AuthenticationContext CreateContext(AdalConfiguration config)
         private AuthenticationResult AcquireToken(AdalConfiguration config, AuthenticationBehavior behavior, string userId,
             string password)
         {
-            AuthenticationResult result = null;
             var context = CreateContext(config);
 
             ServiceClientTracing.Information(

src/CLU/Microsoft.Azure.Commands.Resources.Test/ResourceGroups/NewAzureResourceGroupCommandTests.cs

@@ -41,7 +41,7 @@ public class NewAzureResourceGroupCommandTests : RMTestBase
 
         private string templateFile = @"Resources\sampleTemplateFile.json";
 
-        private string storageAccountName = "myStorageAccount";
+        //private string storageAccountName = "myStorageAccount";
 
         private Hashtable[] tags;
 

src/CLU/Microsoft.Azure.Commands.Websites.Test/NewAzureWebsitesCommandTests.cs

@@ -30,22 +30,21 @@ public class NewAzureWebAppCommandTests
 
         private Mock<ICommandRuntime> commandRuntimeMock;
 
- //       ResourceGroupName, WebsiteName, SlotName, Location, WebHostingPlan
+        //ResourceGroupName, WebsiteName, SlotName, Location, WebHostingPlan
 
+        //private string resourceGroupName = "Default-Web-WestUS";
 
-        private string resourceGroupName = "Default-Web-WestUS";
+        //private string websiteName = "ngoliPSWebsite";
 
-        private string websiteName = "ngoliPSWebsite";
-
-        private string slotName = null; 
+        //private string slotName = null; 
 
-        private string webHostingPlan = "myWHP";
+        //private string webHostingPlan = "myWHP";
 
-        private string location = "West US";
+        //private string location = "West US";
 
-        private Dictionary<string, object> properties;
+        //private Dictionary<string, object> properties;
 
-        private Hashtable[] tags;
+        //private Hashtable[] tags;
 
         public NewAzureWebAppCommandTests()
         {

src/CLU/Microsoft.Azure.Commands.Websites.Test/WebsitesTestHelpers.cs

@@ -24,7 +24,7 @@ public static void CreateAccountResource(string accountName, string resourceGrou
         {
             string tenantUrlEnding = "batch-test.windows-int.net";
             string endpoint = string.Format("{0}.{1}", accountName, tenantUrlEnding);
-            string subscription = "00000000-0000-0000-0000-000000000000";
+            //string subscription = "00000000-0000-0000-0000-000000000000";
             string resourceGroup = resourceGroupName;
         }
     }