remove always false (#561)

* remove always false

* remove unsupport format arg

.github/workflows/buildtest.yaml

@@ -28,7 +28,7 @@ jobs:
       - name: Check Format
         # don't check formatting on Windows b/c of CRLF issues.
         if: matrix.os != 'windows-latest'
-        run: dotnet format --check --dry-run --exclude ./src/KubernetesClient/generated/
+        run: dotnet format --check --exclude ./src/KubernetesClient/generated/
       - name: Build
         run: dotnet build --configuration Release
       - name: Test

src/KubernetesClient/Authentication/OidcTokenProvider.cs

@@ -25,7 +25,7 @@ namespace k8s.Authentication
 
         public async Task<AuthenticationHeaderValue> GetAuthenticationHeaderAsync(CancellationToken cancellationToken)
         {
-            if (_expiry == null || _accessToken == null || DateTime.UtcNow.AddSeconds(30) > _expiry)
+            if (_accessToken == null || DateTime.UtcNow.AddSeconds(30) > _expiry)
             {
                 await RefreshToken().ConfigureAwait(false);
             }