docs: remove deprecated methods from API docs (#1755)

Co-authored-by: kartikayy007 <kartikayy6969@gmail.com>
Co-authored-by: Chan <bot+chan@asyncapi.io>

Author: Kartikayy007

apps/generator/docs/api.md

@@ -54,7 +54,6 @@ Use name of returned templates as input for the <code>generate</code> method for
         * [.executeAfterHook()](#Generator+executeAfterHook) ⇒ `Promise.<void>`
         * [.parseInput()](#Generator+parseInput)
         * [.configureTemplate()](#Generator+configureTemplate)
-        * ~~[.generateFromString(asyncapiString, [parseOptions])](#Generator+generateFromString) ⇒ `Promise.<(TemplateRenderResult|undefined)>`~~
         * [.generateFromURL(asyncapiURL)](#Generator+generateFromURL) ⇒ `Promise.<(TemplateRenderResult|undefined)>`
         * [.generateFromFile(asyncapiFile)](#Generator+generateFromFile) ⇒ `Promise.<(TemplateRenderResult|undefined)>`
         * [.installTemplate([force])](#Generator+installTemplate)
@@ -371,53 +370,6 @@ Configure the templates based the desired renderer.
 
 **Kind**: instance method of [`Generator`](#Generator)  
 
-<a name="Generator+generateFromString"></a>
-
-### ~~generator.generateFromString~~
-***Deprecated***
-
-Generates files from a given template and AsyncAPI string.
-
-**Kind**: instance method of [`Generator`](#Generator)  
-**Params**
-
-- asyncapiString `String` - AsyncAPI string to use as source.
-- [parseOptions] `Object` ` = {}` - AsyncAPI Parser parse options. Check out [@asyncapi/parser](https://www.github.com/asyncapi/parser-js) for more information.
-
-**Example**  
-```js
-const asyncapiString = `
-asyncapi: '2.0.0'
-info:
-  title: Example
-  version: 1.0.0
-...
-`;
-generator
-  .generateFromString(asyncapiString)
-  .then(() => {
-    console.log('Done!');
-  })
-  .catch(console.error);
-```
-**Example** *(Using async/await)*  
-```js
-const asyncapiString = `
-asyncapi: '2.0.0'
-info:
-  title: Example
-  version: 1.0.0
-...
-`;
-
-try {
-  await generator.generateFromString(asyncapiString);
-  console.log('Done!');
-} catch (e) {
-  console.error(e);
-}
-```
-
 <a name="Generator+generateFromURL"></a>
 
 ### generator.generateFromURL

apps/generator/docs/jsdoc2md-handlebars/member-index-grouped.hbs

@@ -0,0 +1,6 @@
+{{#unless deprecated~}}
+{{string-repeat "    " (add level baseLevel)}}* {{#unless (equal _title undefined)}}_{{_title}}_{{else}}{{>sig-link}}{{/unless}}
+{{#groupBy (option "group-by")~}}
+{{>member-index-grouped baseLevel=(add ../level ../baseLevel 1)~}}
+{{/groupBy~}}
+{{/unless~}}

apps/generator/docs/jsdoc2md-handlebars/member-index-list.hbs

@@ -0,0 +1,6 @@
+{{#unless deprecated~}}
+{{>index-indent}}* {{>sig-link-parent}}
+{{#indexChildren ~}}
+{{>member-index-list~}}
+{{/indexChildren}}
+{{/unless~}}

apps/generator/docs/jsdoc2md-handlebars/members.hbs

@@ -0,0 +1 @@
+{{#children inherited=undefined ~}}{{#unless deprecated~}}{{>docs~}}{{/unless~}}{{/children~}}

apps/generator/package.json

@@ -18,7 +18,7 @@
     "test:integration": "npm run test:cleanup && jest --testPathPattern=integration --modulePathIgnorePatterns='./__mocks__(?!\\/loglevel\\.js$)'",
     "test:integration:update": "npm run test:integration -- -u",
     "test:cleanup": "rimraf \"test/temp\"",
-    "docs": "jsdoc2md --partial docs/jsdoc2md-handlebars/custom-sig-name.hbs docs/jsdoc2md-handlebars/main.hbs docs/jsdoc2md-handlebars/docs.hbs docs/jsdoc2md-handlebars/header.hbs docs/jsdoc2md-handlebars/defaultvalue.hbs docs/jsdoc2md-handlebars/link.hbs docs/jsdoc2md-handlebars/params-table.hbs --files lib/generator.js > docs/api.md",
+    "docs": "jsdoc2md --partial docs/jsdoc2md-handlebars/custom-sig-name.hbs docs/jsdoc2md-handlebars/main.hbs docs/jsdoc2md-handlebars/header.hbs docs/jsdoc2md-handlebars/defaultvalue.hbs docs/jsdoc2md-handlebars/link.hbs docs/jsdoc2md-handlebars/params-table.hbs docs/jsdoc2md-handlebars/member-index-list.hbs docs/jsdoc2md-handlebars/member-index-grouped.hbs docs/jsdoc2md-handlebars/members.hbs --files lib/generator.js > docs/api.md",
     "docker:build": "docker build -t asyncapi/generator:latest .",
     "lint": "eslint --max-warnings 0 --config ../../.eslintrc --ignore-path ../../.eslintignore .",
     "lint:fix": "npm run lint -- --fix",