fix: remove outdated info about intellij-rust plugin (closes #55) (#69)

src/getting_started/leptos_dx.md

@@ -77,17 +77,6 @@ config = { procMacro = { ignored =
         ] } } }
 ```
 
-```admonish info
-The Jetbrains `intellij-rust` plugin (RustRover as well) currently does not support dynamic config for macro exclusion.
-However, the project currently maintains a hardcoded list of excluded macros.
-As soon as [this open PR](https://github.com/intellij-rust/intellij-rust/pull/10873) is merged, the `component` and
-`server` macro will be excluded automatically without additional configuration needed.
-
-Update (2023/10/02):
-The `intellij-rust` plugin got deprecated in favor of RustRover at the same time the PR was opened, but an official
-support request was made to integrate the contents of this PR.
-```
-
 ## 3) Set up `leptosfmt` With Rust Analyzer (optional)
 
 "leptosfmt" is a formatter for the Leptos `view!` macro (inside of which you'll typically write your UI code). Because the view! macro enables an 'RSX' (like JSX) style of writing your UI's, cargo-fmt has a harder time auto-formatting your code that's inside the view! macro. leptosfmt is a crate that solves your formattting issues and keeps your RSX-style UI code looking nice and tidy!