remove @obj from interop cheatsheet

Author: tsnobip

pages/docs/manual/latest/interop-cheatsheet.mdx

@@ -26,7 +26,6 @@ This is a glossary with examples. All the features are described by later pages.
 <!-- - `@meth` -->
 - [`@module`](import-from-export-to-js#import-a-javascript-modules-content)
 - [`@new`](bind-to-js-object#bind-to-a-js-object-thats-a-class)
-- `@obj` (now deprecated, you can learn about it in doc versions lower than `v10.0`)
 - [`@optional`](generate-converters-accessors#optional-labels)
 - [`@return`](bind-to-js-function#function-nullable-return-value-wrapping)
 - `@send`: [here](bind-to-js-function#object-method) and [here](pipe#js-method-chaining)