Remove obsolete disclaimer

Author: tsantos84

core/operations.md

@@ -47,7 +47,6 @@ Note: with JSON Merge Patch, the [null values will be skipped](https://symfony.c
 Note: Current `PUT` implementation behaves more or less like the `PATCH` method.
 Existing properties not included in the payload are **not** removed, their current values are preserved.
 To remove an existing property, its value must be explicitly set to `null`.
-Implementing [the standard `PUT` behavior](https://httpwg.org/specs/rfc7231.html#PUT) is on the roadmap, follow [issue #4344](https://github.com/api-platform/core/issues/4344) to track the progress.
 
 ## Enabling and Disabling Operations