Remove sample from OperationRepresentation schema

This is replaced by `examples` - code for this to be done

internal/services/apimanagement/schemaz/api_management.go

@@ -91,11 +91,6 @@ func SchemaApiManagementOperationRepresentation() *pluginsdk.Schema {
 
 				"form_parameter": SchemaApiManagementOperationParameterContract(),
 
-				"sample": {
-					Type:     pluginsdk.TypeString,
-					Optional: true,
-				},
-
 				"schema_id": {
 					Type:     pluginsdk.TypeString,
 					Optional: true,
@@ -123,13 +118,11 @@ func ExpandApiManagementOperationRepresentation(d *pluginsdk.ResourceData, schem
 		contentType := vs["content_type"].(string)
 		formParametersRaw := vs["form_parameter"].([]interface{})
 		formParameters := ExpandApiManagementOperationParameterContract(d, fmt.Sprintf("%s.%d.form_parameter", schemaPath, i), formParametersRaw)
-		sample := vs["sample"].(string)
 		schemaId := vs["schema_id"].(string)
 		typeName := vs["type_name"].(string)
 
 		output := apimanagement.RepresentationContract{
 			ContentType: utils.String(contentType),
-			Sample:      utils.String(sample),
 		}
 
 		contentTypeIsFormData := strings.EqualFold(contentType, "multipart/form-data") || strings.EqualFold(contentType, "application/x-www-form-urlencoded")
@@ -175,10 +168,6 @@ func FlattenApiManagementOperationRepresentation(input *[]apimanagement.Represen
 
 		output["form_parameter"] = FlattenApiManagementOperationParameterContract(v.FormParameters)
 
-		if v.Sample != nil {
-			output["sample"] = *v.Sample
-		}
-
 		if v.SchemaID != nil {
 			output["schema_id"] = *v.SchemaID
 		}