Remove redundant "When to Apply" section from skill body (#154)

This section was already covered by the skill's description frontmatter and doesn't affect triggering behavior. See laravel/boost#669.

Author: pushpak1300

resources/boost/skills/volt-development/SKILL.blade.php

@@ -10,14 +10,6 @@
 @endphp
 # Volt Development
 
-## When to Apply
-
-Activate this skill when:
-
-- Creating Volt single-file components
-- Converting traditional Livewire components to Volt
-- Testing Volt components
-
 ## Documentation
 
 Use `search-docs` for detailed Volt patterns and documentation.