chore: remove old fence patterns [skip indexnow]

Signed-off-by: Eatham532 <78714349+Eatham532@users.noreply.github.com>

Author: Eatham532

mkdocs.yml

@@ -143,19 +143,6 @@ markdown_extensions:
           class: js-template
           format: !!python/name:code_fence_formatter.format_template
           validator: !!python/name:code_fence_formatter.fence_validator
-        # Shell/Terminal (read-only)
-        - name: bash-exec
-          class: bash-exec
-          format: !!python/name:code_fence_formatter.format_exec
-          validator: !!python/name:code_fence_formatter.fence_validator
-        - name: shell-exec
-          class: shell-exec
-          format: !!python/name:code_fence_formatter.format_exec
-          validator: !!python/name:code_fence_formatter.fence_validator
-        - name: powershell-exec
-          class: powershell-exec
-          format: !!python/name:code_fence_formatter.format_exec
-          validator: !!python/name:code_fence_formatter.fence_validator
   - pymdownx.escapeall
   - toc:
       permalink: true