remove depracated validation rule

Author: MaggieKimani1

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

@@ -58,45 +58,6 @@ public static class OpenApiParameterRules
                     context.Exit();
                 });
 
-        /// <summary>
-        /// Validate the data matches with the given data type.
-        /// </summary>
-        public static ValidationRule<OpenApiParameter> ParameterMismatchedDataType =>
-            new(nameof(ParameterMismatchedDataType),
-                (context, parameter) =>
-                {
-                    // example
-                    context.Enter("example");
-
-                    if (parameter.Example != null)
-                    {
-                        RuleHelpers.ValidateDataTypeMismatch(context, nameof(ParameterMismatchedDataType), parameter.Example, parameter.Schema);
-                    }
-
-                    context.Exit();
-
-                    // examples
-                    context.Enter("examples");
-
-                    if (parameter.Examples != null)
-                    {
-                        foreach (var key in parameter.Examples.Keys)
-                        {
-                            if (parameter.Examples[key] != null)
-                            {
-                                context.Enter(key);
-                                context.Enter("value");
-                                RuleHelpers.ValidateDataTypeMismatch(context, 
-                                    nameof(ParameterMismatchedDataType), parameter.Examples[key]?.Value, parameter.Schema);
-                                context.Exit();
-                                context.Exit();
-                            }
-                        }
-                    }
-
-                    context.Exit();
-                });
-
         /// <summary>
         /// Validate that a path parameter should always appear in the path
         /// </summary>

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

@@ -13,49 +13,6 @@ namespace Microsoft.OpenApi.Validations.Rules
     [OpenApiRule]
     public static class OpenApiSchemaRules
     {
-        /// <summary>
-        /// Validate the data matches with the given data type.
-        /// </summary>
-        public static ValidationRule<OpenApiSchema> SchemaMismatchedDataType =>
-            new(nameof(SchemaMismatchedDataType),
-                (context, schema) =>
-                {
-                    // default
-                    context.Enter("default");
-
-                    if (schema.Default != null)
-                    {
-                        RuleHelpers.ValidateDataTypeMismatch(context, nameof(SchemaMismatchedDataType), schema.Default, schema);
-                    }
-
-                    context.Exit();
-
-                    // example
-                    context.Enter("example");
-
-                    if (schema.Example != null)
-                    {
-                        RuleHelpers.ValidateDataTypeMismatch(context, nameof(SchemaMismatchedDataType), schema.Example, schema);
-                    }
-
-                    context.Exit();
-
-                    // enum
-                    context.Enter("enum");
-
-                    if (schema.Enum != null)
-                    {
-                        for (var i = 0; i < schema.Enum.Count; i++)
-                        {
-                            context.Enter(i.ToString());
-                            RuleHelpers.ValidateDataTypeMismatch(context, nameof(SchemaMismatchedDataType), schema.Enum[i], schema);
-                            context.Exit();
-                        }
-                    }
-
-                    context.Exit();
-                });
-
         /// <summary>
         /// Validates Schema Discriminator
         /// </summary>