fix: [UIE-9840] - IAM: Remove Role filter (already assigned roles) in ChangeRoleForEntityDrawer (#13201)

* don't filter out existing roles in ChangeRoleForEntityDrawer

* Added changeset: IAM: Remove Role filter (already assigned roles) in ChangeRoleForEntityDrawer

Author: abailly-akamai

packages/manager/.changeset/pr-13201-fixed-1765798247833.md

@@ -0,0 +1,5 @@
+---
+"@linode/manager": Fixed
+---
+
+IAM: Remove Role filter (already assigned roles) in ChangeRoleForEntityDrawer ([#13201](https://github.com/linode/manager/pull/13201))

packages/manager/src/features/IAM/Shared/AssignedEntitiesTable/ChangeRoleForEntityDrawer.tsx

@@ -90,24 +90,16 @@ export const ChangeRoleForEntityDrawer = ({
         el.access === role?.access &&
         el.value !== role?.role_name;
 
-      // Exclude account roles already assigned to the user
       if (isAccountRole(el)) {
-        return (
-          !assignedRoles?.account_access.includes(el.value) &&
-          matchesRoleContext
-        );
+        return matchesRoleContext;
       }
-      // Exclude entity roles already assigned to the user
+
       if (isEntityRole(el)) {
-        return (
-          !assignedRoles?.entity_access.some((entity) =>
-            entity.roles.includes(el.value)
-          ) && matchesRoleContext
-        );
+        return matchesRoleContext;
       }
       return true;
     });
-  }, [accountRoles, role, assignedRoles]);
+  }, [accountRoles, role]);
 
   const {
     control,