Remove ApplicationInsightsConnectionString

Remove now-obsolete `ApplicationInsightsConnectionString` configuration setting.

src/LondonTravel.Skill/SkillConfiguration.cs

@@ -8,11 +8,6 @@ namespace MartinCostello.LondonTravel.Skill;
 /// </summary>
 public sealed class SkillConfiguration
 {
-    /// <summary>
-    /// Gets or sets the ApplicationInsights connection string to use.
-    /// </summary>
-    public string ApplicationInsightsConnectionString { get; set; } = string.Empty;
-
     /// <summary>
     /// Gets or sets the URL for the skill API.
     /// </summary>
@@ -53,7 +48,6 @@ public static SkillConfiguration CreateDefaultConfiguration()
 
         return new SkillConfiguration()
         {
-            ApplicationInsightsConnectionString = GetEnvironmentVariable("APPINSIGHTS_CONNECTIONSTRING"),
             SkillApiUrl = GetEnvironmentVariable("SKILL_API_HOSTNAME"),
             SkillId = GetEnvironmentVariable("SKILL_ID"),
             TflApplicationId = GetEnvironmentVariable("TFL_APP_ID"),

test/LondonTravel.Skill.Tests/FunctionTests.cs

@@ -38,7 +38,6 @@ protected virtual SkillConfiguration CreateConfiguration()
     {
         var config = SkillConfiguration.CreateDefaultConfiguration();
 
-        config.ApplicationInsightsConnectionString = "InstrumentationKey=my-application-insights-key;IngestionEndpoint=https://northeurope-0.in.applicationinsights.azure.com/;LiveEndpoint=https://northeurope.livediagnostics.monitor.azure.com/";
         config.SkillApiUrl = "https://londontravel.martincostello.local/";
         config.SkillId = "my-skill-id";
         config.TflApplicationId = "my-tfl-app-id";
@@ -136,7 +135,7 @@ private sealed class TestAlexaFunction(
 
         protected override void ConfigureServices(IServiceCollection services)
         {
-            services.AddLogging((builder) => builder.AddXUnit(this).SetMinimumLevel(Microsoft.Extensions.Logging.LogLevel.Debug));
+            services.AddLogging((builder) => builder.AddXUnit(this).SetMinimumLevel(LogLevel.Debug));
             services.AddSingleton(config);
             services.AddSingleton<IHttpMessageHandlerBuilderFilter, HttpRequestInterceptionFilter>(
                 (_) => new HttpRequestInterceptionFilter(options));