refactor: Remove redundant curl availability checks

installers/install_starship.sh

@@ -20,12 +20,6 @@ install_starship() {
         log_info "Starship is already installed."
     fi
 
-    # Ensure curl is installed
-    if ! has_command curl; then
-        log_info "curl not found. Installing curl..."
-        pkg_install curl
-    fi
-
     # Detect architecture
     local raw_arch
     raw_arch=$(detect_arch)