code cleanup

Author: MaggieKimani1

src/Microsoft.OpenApi/Validations/Rules/RuleHelpers.cs

@@ -1,10 +1,8 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT license.
 
-using System;
 using System.Text.Json;
 using System.Text.Json.Nodes;
-using Microsoft.OpenApi.Any;
 using Microsoft.OpenApi.Models;
 
 namespace Microsoft.OpenApi.Validations.Rules

src/Microsoft.OpenApi/Validations/ValidationRuleSet.cs

@@ -1,5 +1,4 @@
-
-// Copyright (c) Microsoft Corporation. All rights reserved.
+// Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT license.
 
 using System;
@@ -9,7 +8,6 @@
 using Microsoft.OpenApi.Exceptions;
 using Microsoft.OpenApi.Properties;
 using Microsoft.OpenApi.Validations.Rules;
-using System.Data;
 
 namespace Microsoft.OpenApi.Validations
 {

test/Microsoft.OpenApi.Tests/PublicApi/PublicApi.approved.txt

@@ -1691,6 +1691,13 @@ namespace Microsoft.OpenApi.Validations.Rules
     {
         public static Microsoft.OpenApi.Validations.ValidationRule<Microsoft.OpenApi.Models.OpenApiLicense> LicenseRequiredFields { get; }
     }
+    public static class OpenApiNonDefaultRules
+    {
+        public static Microsoft.OpenApi.Validations.ValidationRule<Microsoft.OpenApi.Models.OpenApiHeader> HeaderMismatchedDataType { get; }
+        public static Microsoft.OpenApi.Validations.ValidationRule<Microsoft.OpenApi.Models.OpenApiMediaType> MediaTypeMismatchedDataType { get; }
+        public static Microsoft.OpenApi.Validations.ValidationRule<Microsoft.OpenApi.Models.OpenApiParameter> ParameterMismatchedDataType { get; }
+        public static Microsoft.OpenApi.Validations.ValidationRule<Microsoft.OpenApi.Models.OpenApiSchema> SchemaMismatchedDataType { get; }
+    }
     [Microsoft.OpenApi.Validations.Rules.OpenApiRule]
     public static class OpenApiOAuthFlowRules
     {