Remove verifier ban

Author: smalyshev

x-pack/plugin/esql/src/main/java/org/elasticsearch/xpack/esql/plan/logical/Enrich.java

@@ -317,8 +317,6 @@ private static void checkForPlansForbiddenBeforeRemoteEnrich(Enrich enrich, Fail
                 badCommands.add("STATS");
             } else if (u instanceof Enrich upstreamEnrich && upstreamEnrich.mode() == Enrich.Mode.COORDINATOR) {
                 badCommands.add("another ENRICH with coordinator policy");
-            } else if (u instanceof LookupJoin) {
-                badCommands.add("LOOKUP JOIN");
             } else if (u instanceof Fork) {
                 badCommands.add("FORK");
             }

x-pack/plugin/esql/src/test/java/org/elasticsearch/xpack/esql/analysis/VerifierTests.java

@@ -2424,32 +2424,29 @@ public void testRemoteEnrichAfterLookupJoin() {
             | %s
             """, lookupCommand), analyzer);
 
-        String err = error(Strings.format("""
+        query(Strings.format("""
             FROM test
             | EVAL language_code = languages
             | %s
             | ENRICH _remote:languages ON language_code
             """, lookupCommand), analyzer);
-        assertThat(err, containsString("4:3: ENRICH with remote policy can't be executed after LOOKUP JOIN"));
 
-        err = error(Strings.format("""
+        query(Strings.format("""
             FROM test
             | EVAL language_code = languages
             | %s
             | ENRICH _remote:languages ON language_code
             | %s
             """, lookupCommand, lookupCommand), analyzer);
-        assertThat(err, containsString("4:3: ENRICH with remote policy can't be executed after LOOKUP JOIN"));
 
-        err = error(Strings.format("""
+        query(Strings.format("""
             FROM test
             | EVAL language_code = languages
             | %s
             | EVAL x = 1
             | MV_EXPAND language_code
             | ENRICH _remote:languages ON language_code
             """, lookupCommand), analyzer);
-        assertThat(err, containsString("6:3: ENRICH with remote policy can't be executed after LOOKUP JOIN"));
     }
 
     public void testRemoteEnrichAfterCoordinatorOnlyPlans() {