Remove obsolete preprocessor directives

Remove now-redundant `#if NET...` directives and associated redundant code.

Author: martincostello

src/Shared/JsonExtensions.cs

@@ -7,20 +7,10 @@ internal static class JsonExtensions
 {
     private static readonly JsonSerializerOptions Options = new()
     {
-#if NET9_0_OR_GREATER
         NewLine = "\n",
-#endif
         WriteIndented = true,
     };
 
     public static string ToJson(this JsonNode value)
-    {
-        var json = value.ToJsonString(Options);
-
-#if !NET9_0_OR_GREATER
-        json = json.Replace("\r\n", "\n");
-#endif
-
-        return json;
-    }
+        => value.ToJsonString(Options);
 }

src/Swashbuckle.AspNetCore.SwaggerGen/SwaggerGenerator/ApiParameterDescriptionExtensions.cs

@@ -90,12 +90,10 @@ internal static bool IsFromForm(this ApiParameterDescription apiParameter)
     {
         bool isEnhancedModelMetadataSupported = true;
 
-#if NET9_0_OR_GREATER
         if (AppContext.TryGetSwitch("Microsoft.AspNetCore.Mvc.ApiExplorer.IsEnhancedModelMetadataSupported", out var isEnabled))
         {
             isEnhancedModelMetadataSupported = isEnabled;
         }
-#endif
 
         var source = apiParameter.Source;
         var elementType = isEnhancedModelMetadataSupported ? apiParameter.ModelMetadata?.ElementType : null;

src/Swashbuckle.AspNetCore.SwaggerGen/SwaggerGenerator/SwaggerGenerator.cs

@@ -1013,11 +1013,7 @@ private OpenApiResponse GenerateResponse(
         string statusCode,
         ApiResponseType apiResponseType)
     {
-        string description = null;
-
-#if NET10_0_OR_GREATER
-        description = apiResponseType.Description;
-#endif
+        string description = apiResponseType.Description;
 
         if (string.IsNullOrEmpty(description))
         {

test/Swashbuckle.AspNetCore.IntegrationTests/ClientGenerator.cs

@@ -1,6 +1,4 @@
-#if NET10_0_OR_GREATER
-
-using System.Diagnostics;
+using System.Diagnostics;
 using System.Reflection;
 using System.Text;
 using System.Text.Json;
@@ -368,5 +366,3 @@ static async Task<StringBuilder> ProcessStream(
         }
     }
 }
-
-#endif

test/Swashbuckle.AspNetCore.IntegrationTests/CodeGenerationTests.cs

@@ -1,6 +1,4 @@
-#if NET10_0_OR_GREATER
-
-using System.Reflection;
+using System.Reflection;
 using System.Security.Cryptography;
 using System.Text;
 using Microsoft.OpenApi;
@@ -118,5 +116,3 @@ private static string GetProjectRoot() =>
             .First((p) => p.Key is "ProjectRoot")
             .Value!;
 }
-
-#endif

test/Swashbuckle.AspNetCore.IntegrationTests/HttpServerFixture.cs

@@ -1,5 +1,4 @@
-#if NET10_0_OR_GREATER
-using Microsoft.AspNetCore.Mvc.Testing;
+using Microsoft.AspNetCore.Mvc.Testing;
 
 namespace Swashbuckle.AspNetCore.IntegrationTests;
 
@@ -17,4 +16,3 @@ public string ServerUrl
         }
     }
 }
-#endif

test/Swashbuckle.AspNetCore.IntegrationTests/KiotaClientTests.cs

@@ -1,6 +1,4 @@
-#if NET10_0_OR_GREATER
-
-using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Http;
 using Microsoft.Kiota.Abstractions.Authentication;
 using Microsoft.Kiota.Http.HttpClientLibrary;
 using TodoApp.KiotaClient;
@@ -262,5 +260,3 @@ private static async Task WithTodoAppClientAsync(Func<KiotaTodoApiClient, Task>
         await callback(client);
     }
 }
-
-#endif

test/Swashbuckle.AspNetCore.IntegrationTests/NSwagClientTests.cs

@@ -1,6 +1,4 @@
-#if NET10_0_OR_GREATER
-
-using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Http;
 using TodoApp.NSwagClient;
 
 namespace Swashbuckle.AspNetCore.IntegrationTests;
@@ -271,5 +269,3 @@ private static async Task WithTodoAppClientAsync(Func<NSwagTodoApiClient, Task>
         await callback(client);
     }
 }
-
-#endif

test/Swashbuckle.AspNetCore.IntegrationTests/PlaywrightFixture.cs

@@ -1,5 +1,4 @@
-#if NET10_0_OR_GREATER
-using Microsoft.Playwright;
+using Microsoft.Playwright;
 
 namespace Swashbuckle.AspNetCore.IntegrationTests;
 
@@ -60,4 +59,3 @@ private void EnsureInstalled()
         }
     }
 }
-#endif

test/Swashbuckle.AspNetCore.IntegrationTests/UITests.cs

@@ -1,5 +1,4 @@
-#if NET10_0_OR_GREATER
-using ReDocApp = ReDoc;
+using ReDocApp = ReDoc;
 
 namespace Swashbuckle.AspNetCore.IntegrationTests;
 
@@ -45,4 +44,3 @@ private sealed class RedocFixture : HttpApplicationFixture<ReDocApp.Program>;
 
     private sealed class SwaggerUIFixture : HttpApplicationFixture<Basic.Startup>;
 }
-#endif