Remove MSAL v3 migration aid (#4987)

* Force use specific version of .net SDK

* 2

* Add variance

* Remove MSAL v3 migration aid

* fix

* update

* 2

Author: bgavrilMS

build/template-build-and-run-all-tests.yaml

@@ -74,6 +74,8 @@ jobs: #Build and stage projects
       checkCoverage: '$(CodeCoverageGateEnabled)'
       coverageFailOption: 'build'
       coverageType: 'lines'
+      allowCoverageVariance: true 
+      coverageVariance: 1 # Specify by how much the current amount of covered or uncovered code (depending on the parameter *Use Uncovered Elements*) may deviate from the previous value before the policy fails. Please be aware that the code coverage may slowly but steadily decrease from build to build if you allow a code coverage variance. Thus, you should keep this value as low as possible.
       treat0of0as100: true
       forceCoverageImprovement: true
       coverageUpperThreshold: '90'

global.json

@@ -1,5 +1,6 @@
 {
-	"msbuild-sdks": {
-		"MSBuild.Sdk.Extras": "3.0.44"
-	}
-}
+    "sdk": {
+        "version": "6.0.428",
+        "rollForward": "latestFeature"
+    }
+}

src/client/Microsoft.Identity.Client/ConfidentialClientApplication.cs

@@ -23,7 +23,6 @@ namespace Microsoft.Identity.Client
     public sealed partial class ConfidentialClientApplication
         : ClientApplicationBase,
             IConfidentialClientApplication,
-            IConfidentialClientApplicationWithCertificate,
             IByRefreshToken,
             ILongRunningWebApi,
             IByUsernameAndPassword