Issue #1988708 by andypost: Drop unused _taxonomy_get_tid_from_term()

core/modules/taxonomy/taxonomy.module

@@ -862,13 +862,6 @@ function taxonomy_term_load($tid) {
   return entity_load('taxonomy_term', $tid);
 }
 
-/**
- * Helper function for array_map purposes.
- */
-function _taxonomy_get_tid_from_term(Term $term) {
-  return $term->id();
-}
-
 /**
  * Implodes a list of tags of a certain vocabulary into a string.
  *