Fix test

Author: smalyshev

x-pack/plugin/esql/src/test/java/org/elasticsearch/xpack/esql/optimizer/OptimizerVerificationTests.java

@@ -254,32 +254,29 @@ public void testRemoteEnrichAfterLookupJoin() {
             | %s
             """, lookupCommand), analyzer);
 
-        String err = error(Strings.format("""
+        plan(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 [" + lookupCommand + "]@3:3"));
 
-        err = error(Strings.format("""
+        plan(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 [" + lookupCommand + "]@3:3"));
 
-        err = error(Strings.format("""
+        plan(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 [" + lookupCommand + "]@3:3"));
     }
 
     public void testRemoteLookupJoinWithPipelineBreaker() {