Remove dead code from plugin scripts

canonical_widget_id was a pure pass-through, making its reserved-id
check a tautology; require_omarchy_path and choose_value were defined
but never called.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

bin/omarchy-plugin

@@ -54,10 +54,6 @@ fail() {
   exit 1
 }
 
-require_omarchy_path() {
-  [[ -n ${OMARCHY_PATH:-} ]] || fail "OMARCHY_PATH is not set"
-}
-
 require_command() {
   command -v "$1" >/dev/null 2>&1 || fail "$1 is required"
 }

bin/omarchy-plugin-clone

@@ -26,10 +26,6 @@ interactive() {
   [[ -t 0 && -t 1 ]]
 }
 
-canonical_widget_id() {
-  printf '%s' "$1"
-}
-
 slug_id() {
   tr '[:upper:]' '[:lower:]' <<<"$1" | sed -E 's/^omarchy\.//; s/[^a-z0-9]+/-/g; s/^-+//; s/-+$//'
 }
@@ -39,7 +35,6 @@ validate_plugin_id() {
   [[ $id =~ ^[A-Za-z0-9][A-Za-z0-9._-]*$ ]] || fail "plugin id must contain only letters, numbers, dots, underscores, and dashes"
   [[ $id == *.* ]] || fail "plugin id must be namespaced, e.g. local.clock"
   [[ $id != omarchy.* ]] || fail "plugin ids beginning with omarchy. are reserved for built-ins"
-  [[ $(canonical_widget_id "$id") == "$id" ]] || fail "$id is a reserved built-in widget id"
 }
 
 catalog_json() {
@@ -52,10 +47,7 @@ catalog_json() {
 # built-in bar widget matching $1 (by id or alias). Used to find the source QML
 # file and metadata to copy when cloning a widget.
 builtin_widget_info() {
-  local wanted
-  wanted=$(canonical_widget_id "$1")
-
-  catalog_json | jq -r --arg id "$wanted" '
+  catalog_json | jq -r --arg id "$1" '
     .[] | select((.kinds | index("bar-widget")) and .barWidgetPath != null)
     | select(.id == $id or (((.barWidget.aliases // [])) | index($id)))
     | [.id, .barWidgetPath, (.barWidget.displayName // .name // .id), (.barWidget.category // "Plugin"), (if .barWidget.allowMultiple == true then "true" else "false" end)]
@@ -78,12 +70,6 @@ choose_clone_source() {
   awk '{ print $NF }' <<<"$selected"
 }
 
-choose_value() {
-  local prompt="$1"
-  shift
-  gum choose --header "$prompt" "$@"
-}
-
 input_value() {
   local prompt="$1"
   local value="${2:-}"
@@ -286,7 +272,6 @@ clone_command() {
       fail "clone source is required"
     fi
   fi
-  source_id=$(canonical_widget_id "$source_id")
 
   local default_slug
   default_slug=$(slug_id "$source_id")