docs: remove redundant notes for plugins docs

Author: Rel1cx

packages/plugins/eslint-plugin-react-debug/README.md

@@ -2,9 +2,6 @@
 
 Debugging rules.
 
-> [!NOTE]
-> This plugin is already included in `@eslint-react/eslint-plugin`. You don't need to install it separately if you are using `@eslint-react/eslint-plugin`.
-
 ## Install
 
 ```sh

packages/plugins/eslint-plugin-react-dom/README.md

@@ -2,9 +2,6 @@
 
 DOM specific rules for React DOM.
 
-> [!NOTE]
-> This plugin is already included in `@eslint-react/eslint-plugin`. You don't need to install it separately if you are using `@eslint-react/eslint-plugin`.
-
 ## Install
 
 ```sh

packages/plugins/eslint-plugin-react-hooks-extra/README.md

@@ -2,9 +2,6 @@
 
 Extra rules for React Hooks.
 
-> [!NOTE]
-> This plugin is already included in `@eslint-react/eslint-plugin`. You don't need to install it separately if you are using `@eslint-react/eslint-plugin`.
-
 ## Install
 
 ```sh

packages/plugins/eslint-plugin-react-naming-convention/README.md

@@ -2,9 +2,6 @@
 
 Naming convention rules.
 
-> [!NOTE]
-> This plugin is already included in `@eslint-react/eslint-plugin`. You don't need to install it separately if you are using `@eslint-react/eslint-plugin`.
-
 ## Install
 
 ```sh

packages/plugins/eslint-plugin-react-x/README.md

@@ -2,9 +2,6 @@
 
 A set of composable linting rules for libraries and frameworks that use React as a UI runtime.
 
-> [!NOTE]
-> This plugin is already included in `@eslint-react/eslint-plugin`. You don't need to install it separately if you are using `@eslint-react/eslint-plugin`.
-
 ## Install
 
 ```sh