mkdocs.yml: remove deprecated emoji extensions.

docs/CHANGELOG.md

@@ -23,6 +23,7 @@ Test fixtures for use by clients are available for each release on the [Github r
 - ✨ Tooling: Add Python 3.12 support ([#309](https://github.com/ethereum/execution-spec-tests/pull/309)).
 - ✨ Process: Added a Github pull request template ([#308](https://github.com/ethereum/execution-spec-tests/pull/308)).
 - ✨ Docs: Changelog updated post release ([#321](https://github.com/ethereum/execution-spec-tests/pull/321)).
+- ✨ Docs: Remove deprecated emoji extensions from mkdocs.yml ([#337](https://github.com/ethereum/execution-spec-tests/pull/337)).
 
 ## [v1.0.5](https://github.com/ethereum/execution-spec-tests/releases/tag/v1.0.5) - 2023-09-26: 🐍🏖️ Cancun Devnet 9 Release 3
 

mkdocs.yml

@@ -80,9 +80,6 @@ markdown_extensions:
       smart_enable: all
   - pymdownx.caret
   - pymdownx.details
-  - pymdownx.emoji:
-      emoji_index: !!python/name:materialx.emoji.twemoji
-      emoji_generator: !!python/name:materialx.emoji.to_svg
   - pymdownx.highlight
   - pymdownx.inlinehilite
   - pymdownx.keys
@@ -109,4 +106,4 @@ markdown_extensions:
 
 extra:
   version:
-    provider: mike
+    provider: mike