I-388: Remove ident property from options in docs.

Author: Aori Nevo

README.md

@@ -208,7 +208,6 @@ module.exports = ({ file, options, env }) => ({
 {
   loader: 'postcss-loader',
   options: {
-    ident: 'postcss',
     plugins: (loader) => [
       require('postcss-import')({ root: loader.resourcePath }),
       require('postcss-preset-env')(),
@@ -218,8 +217,6 @@ module.exports = ({ file, options, env }) => ({
 }
 ```
 
-> ⚠️  webpack requires an identifier (`ident`) in `options` when `{Function}/require` is used (Complex Options). The `ident` can be freely named as long as it is unique. It's recommended to name it (`ident: 'postcss'`)
-
 ### `Syntaxes`
 
 |Name|Type|Default|Description|
@@ -319,7 +316,6 @@ within the CSS directly as an annotation comment.
     {
       loader: 'postcss-loader',
       options: {
-        ident: 'postcss',
         plugins: [
           require('postcss-import')(),
           require('stylelint')(),
@@ -343,7 +339,6 @@ within the CSS directly as an annotation comment.
     {
       loader: 'postcss-loader',
       options: {
-        ident: 'postcss',
         plugins: [
           require('autoprefixer')({...options}),
           ...,