Update ipython from 9.3.0 to 9.4.0 (emscripten-forge#2490)

* Update ipython from 9.3.0 to 9.4.0

* Remove legacy recipe

---------

Co-authored-by: emscripten-forge-bot <emscripten-forge-bot@users.noreply.github.com>
Co-authored-by: Isabel Paredes <isabel.paredes@quantstack.net>

Author: emscripten-forge-bot

recipes/recipes_emscripten/ipython/recipe.yaml

@@ -1,24 +1,24 @@
 context:
-  version: 9.3.0
+  version: 9.4.0
 
 package:
   name: ipython
   version: ${{ version }}
 
 source:
 - url: https://pypi.io/packages/source/i/ipython/ipython-${{ version }}.tar.gz
-  sha256: 79eb896f9f23f50ad16c3bc205f686f6e030ad246cc309c6279a242b14afe9d8
+  sha256: c033c6d4e7914c3d9768aabe76bbe87ba1dc66a92a05db6bfa1125d81f2ee270
   patches:
   - patches/0001-Patch-asyncio-tornado.patch
 
 build:
-  number: 3
+  number: 0
 
 requirements:
   build:
   - python
   - ${{ compiler("c") }}
-  - cross-python_emscripten-wasm32
+  - cross-python_${{ target_platform }}
   - pip
   host:
   - python
@@ -45,6 +45,7 @@ tests:
     - pytester
     run:
     - pytester-run
+
 about:
   license: BSD-3-Clause
   license_family: BSD
@@ -55,6 +56,7 @@ about:
     a powerful interactive shell, a kernel for Jupyter, high performance
     tools for parallel computing, and more.
   homepage: https://ipython.org
+
 extra:
   recipe-maintainers:
   - DerThorsten