chore: remove preview feature in config and docs

Author: guyromellemagayano

README.md

@@ -25,7 +25,6 @@ Provide support for the following features:
 - Throttling, debouncing, and adjusting the number of concurrent `optimizely/episerver` API requests
 - Add support for `expanded` data on some content blocks: `images`, `dynamicStyles`, `items`, `form` key fields are currently supported with more to come in the future
 - Option for opting out of type inference for `optimizely/episerver` API `gatsby` nodes or add custom `gatsby` node schemas for `optimizely/episerver` API `gatsby` nodes
-<!-- - **[BETA]** Support for enhanced `preview` mode for testing `optimizely/episerver` webhooks. Currently supports [**Netlify**](https://www.netlify.com/) -->
 
 ## Installation and Setup
 
@@ -92,21 +91,6 @@ module.exports = {
 
 ## Configuration Options
 
-<!-- ### [BETA] Preview Mode
-
-To properly enable preview mode, deploy a site instance in the server, get your site URL and add it under the key `siteUrl` and set the `preview` mode to `true` to options as shown. Default is `false`.
-
-```javascript
-options: {
-  // ...
-
-  preview: {
-    enabled: true;
-    site_url: "https://example.com";
-  }
-}
-``` -->
-
 ### Additional Headers
 
 Add additional headers to the request as follows:

src/gatsby-node.js

@@ -123,18 +123,6 @@ exports.pluginOptionsSchema = ({ Joi }) =>
 				"object.required": "The `auth` object is required."
 			})
 			.description("The auth credentials for the Optimizely/Episerver site"),
-		// preview: Joi.object({
-		// 	webhook_url: Joi.string().when("enabled", {
-		// 		is: true,
-		// 		then: Joi.string()
-		// 			.required()
-		// 			.messages({
-		// 				"string.empty": "The `preview.webhook_url` is empty. Please provide a valid URL.",
-		// 				"string.required": "The `preview.webhook_url` is required."
-		// 			})
-		// 			.description("The webhook URL for the Optimizely/Episerver site")
-		// 	})
-		// }).description("The preview options for the plugin"),
 		globals: Joi.object()
 			.when("enabled", {
 				is: true,
@@ -199,7 +187,6 @@ exports.sourceNodes = async ({ actions: { createNode }, cache, createNodeId, cre
 	// Prepare plugin options
 	const {
 		auth: { site_url = null, username = null, password = null, grant_type = AUTH_GRANT_TYPE, client_id = AUTH_CLIENT_ID, headers = AUTH_HEADERS },
-		// preview: { webhook_url = null },
 		endpoints = [],
 		response_type = REQUEST_RESPONSE_TYPE,
 		request_timeout = REQUEST_TIMEOUT,
@@ -333,9 +320,6 @@ exports.sourceNodes = async ({ actions: { createNode }, cache, createNodeId, cre
 
 					// Reject the promise
 					return err;
-				})
-				.finally(() => {
-					return;
 				});
 		}