Issue #2910181 by sarvjeetsingh, anmolgoyal74, apaderno, pameeela, jcalais:...

Issue #2910181 by sarvjeetsingh, anmolgoyal74, apaderno, pameeela, jcalais: Update hook_node_grants docs to remove role ID reference, since it is no longer an integer

(cherry picked from commit 8d2e4880)

core/modules/node/node.api.php

@@ -22,11 +22,8 @@
  * "realms". In hook_node_access_records(), the realms and grant IDs are
  * associated with permission to view, edit, and delete individual nodes.
  *
- * The realms and grant IDs can be arbitrarily defined by your node access
- * module; it is common to use role IDs as grant IDs, but that is not required.
- * Your module could instead maintain its own list of users, where each list has
- * an ID. In that case, the return value of this hook would be an array of the
- * list IDs that this user is a member of.
+ * Grant IDs can be arbitrarily defined by a node access module using a list of
+ * integer IDs associated with users.
  *
  * A node access module may implement as many realms as necessary to properly
  * define the access privileges for the nodes. Note that the system makes no