Bail out if NativeEditorConfigSupport experiment is disabled

Also revert the changes to integration tests until the experiment is always on by default/removed. I'll keep #36330 open to track reverting this commit

src/Features/Core/Portable/CodeFixes/Configuration/ConfigureCodeStyle/ConfigureCodeStyleOptionCodeFixProvider.cs

@@ -13,6 +13,7 @@
 using Microsoft.CodeAnalysis.CodeStyle;
 using Microsoft.CodeAnalysis.Diagnostics;
 using Microsoft.CodeAnalysis.Options;
+using Microsoft.CodeAnalysis.Options.EditorConfig;
 using Microsoft.CodeAnalysis.PooledObjects;
 using Microsoft.CodeAnalysis.Text;
 using static Microsoft.CodeAnalysis.CodeActions.CodeAction;
@@ -53,6 +54,12 @@ public Task<ImmutableArray<CodeFix>> GetFixesAsync(Project project, IEnumerable<
 
         private static ImmutableArray<CodeFix> GetConfigurations(Project project, IEnumerable<Diagnostic> diagnostics, CancellationToken cancellationToken)
         {
+            // Bail out if NativeEditorConfigSupport experiment is not enabled.
+            if (!EditorConfigDocumentOptionsProviderFactory.ShouldUseNativeEditorConfigSupport(project.Solution.Workspace))
+            {
+                return ImmutableArray<CodeFix>.Empty;
+            }
+
             var result = ArrayBuilder<CodeFix>.GetInstance();
             foreach (var diagnostic in diagnostics)
             {

src/Features/Core/Portable/CodeFixes/Configuration/ConfigureSeverity/ConfigureSeverityLevelCodeFixProvider.cs

@@ -7,6 +7,7 @@
 using System.Threading.Tasks;
 using Microsoft.CodeAnalysis.CodeActions;
 using Microsoft.CodeAnalysis.CodeFixes.Suppression;
+using Microsoft.CodeAnalysis.Options.EditorConfig;
 using Microsoft.CodeAnalysis.PooledObjects;
 using Microsoft.CodeAnalysis.Text;
 using static Microsoft.CodeAnalysis.CodeActions.CodeAction;
@@ -41,6 +42,12 @@ public Task<ImmutableArray<CodeFix>> GetFixesAsync(Project project, IEnumerable<
 
         private static ImmutableArray<CodeFix> GetConfigurations(Project project, IEnumerable<Diagnostic> diagnostics, CancellationToken cancellationToken)
         {
+            // Bail out if NativeEditorConfigSupport experiment is not enabled.
+            if (!EditorConfigDocumentOptionsProviderFactory.ShouldUseNativeEditorConfigSupport(project.Solution.Workspace))
+            {
+                return ImmutableArray<CodeFix>.Empty;
+            }
+
             var result = ArrayBuilder<CodeFix>.GetInstance();
             foreach (var diagnostic in diagnostics)
             {

src/VisualStudio/IntegrationTest/IntegrationTests/CSharp/CSharpCodeActions.cs

@@ -492,12 +492,13 @@ public class P2 { }");
                 "Generate new type...",
                 "Remove unused variable",
                 "Configure or Suppress issues",
-                "Configure CS0168 severity",
-                "None",
-                "Silent",
-                "Suggestion",
-                "Warning",
-                "Error",
+                // https://github.com/dotnet/roslyn/issues/36330
+                //"Configure CS0168 severity",
+                //"None",
+                //"Silent",
+                //"Suggestion",
+                //"Warning",
+                //"Error",
                 "Suppress CS0168",
                 "in Source"
             };
@@ -539,12 +540,13 @@ static void Main(string[] args)
                 "Generate new type...",
                 "Goober - using N;",
                 "Configure or Suppress issues",
-                "Configure CS0168 severity",
-                "None",
-                "Silent",
-                "Suggestion",
-                "Warning",
-                "Error",
+                // https://github.com/dotnet/roslyn/issues/36330
+                //"Configure CS0168 severity",
+                //"None",
+                //"Silent",
+                //"Suggestion",
+                //"Warning",
+                //"Error",
                 "Suppress CS0168",
                 "in Source",
             };
@@ -581,12 +583,13 @@ static void Main(string[] args)
                 "Extract Method",
                 generateImplicitTitle,
                 "Configure or Suppress issues",
-                "Configure CS0612 severity",
-                "None",
-                "Silent",
-                "Suggestion",
-                "Warning",
-                "Error",
+                // https://github.com/dotnet/roslyn/issues/36330
+                //"Configure CS0612 severity",
+                //"None",
+                //"Silent",
+                //"Suggestion",
+                //"Warning",
+                //"Error",
                 "Suppress CS0612",
                 "in Source",
             };
@@ -644,7 +647,7 @@ static void Main(string[] args)
 
         }
 
-        [WpfFact, Trait(Traits.Feature, Traits.Features.CodeActionsConfiguration)]
+        [WpfFact(Skip = "https://github.com/dotnet/roslyn/issues/36330"), Trait(Traits.Feature, Traits.Features.CodeActionsConfiguration)]
         public void ConfigureCodeStyleOptionValueAndSeverity()
         {
             SetUpEditor(@"