Update src/Authentication/Authentication.Test/Helpers/AuthenticationHelpersTests.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: ramsessanchez

src/Authentication/Authentication.Test/Helpers/AuthenticationHelpersTests.cs

@@ -623,7 +623,6 @@ await AuthenticationHelpers.SignInAsync(
             Assert.True(signInContext.IsCaeEnabled,
                 "SignInAsync must pass isCaeEnabled: true to GetTokenAsync.");
             Assert.NotNull(providerContext);
-                "SignInAsync must pass isCaeEnabled: true to GetTokenAsync.");
             Assert.True(providerContext.IsCaeEnabled,
                 "AzureIdentityAccessTokenProvider must forward isCaeEnabled: true.");