fix(bridges_v1): avoid merging action examples for non-v1 bridges

Since some new bridges might not have a V1 equivalent (i.e. they are not registered in
`emqx_bridge_enterprise`), we should avoid displaying their examples in the V1 API spec.

apps/emqx_bridge/src/schema/emqx_bridge_enterprise.erl

@@ -82,9 +82,7 @@ schema_modules() ->
     ].
 
 examples(Method) ->
-    ActionExamples = emqx_bridge_v2_schema:examples(Method),
-    RegisteredExamples = registered_examples(Method),
-    maps:merge(ActionExamples, RegisteredExamples).
+    registered_examples(Method).
 
 registered_examples(Method) ->
     MergeFun =