remove type aliases

Author: fredr

docs/ts/primitives/cookies.mdx

@@ -123,25 +123,6 @@ You can use the following types for cookie values:
 
 When defining cookies, you can specify the type using the generic parameter:
 
-```ts
-// String cookie - explicit declaration
-type StringCookie = Cookie<string, "sessionId">;
-
-// Equivalent string cookie with omitted type parameter
-type ImplicitStringCookie = Cookie<"sessionId">;
-
-// Number cookie
-type NumberCookie = Cookie<number, "userId">;
-
-// Boolean cookie
-type BooleanCookie = Cookie<boolean, "darkMode">;
-
-// Date cookie
-type DateCookie = Cookie<Date, "lastVisit">;
-```
-
-### Example: Using Different Cookie Types
-
 ```ts
 interface UserPreferences {
   // Cookies with different types