refactor: simply builder_remove_args array construction and usage

Co-authored-by: Matías Bellone <toote@users.noreply.github.com>

Author: tomowatt

hooks/pre-exit

@@ -28,7 +28,7 @@ builder_remove="$(plugin_read_config BUILDER_REMOVE "false")"
 if [[ "${builder_remove}" == true ]]; then
   if builder_instance_exists "${builder_name}"; then
 
-    builder_remove_args=()
+    builder_remove_args=("${builder_name}")
 
     if [[ "$(plugin_read_config BUILDER_KEEP_DAEMON "false")" == "true" ]]; then
       builder_remove_args+=("--keep-daemon")
@@ -40,7 +40,7 @@ if [[ "${builder_remove}" == true ]]; then
 
     echo "~~~ :docker: Cleaning up Builder Instance '${builder_name}'"
     docker buildx stop "${builder_name}"
-    docker buildx rm "${builder_name}" ${builder_remove_args:+${builder_remove_args[@]}}
+    docker buildx rm "${builder_remove_args[@]}"
   else
     echo "~~~ :warning: Cannot remove Builder Instance '${builder_name}' as does not exist"
   fi