Update base.py revert grpc_port changes (#14745)

Author: sourcecd

ydb/tools/cfg/base.py

@@ -709,12 +709,7 @@ def default_log_level(self):
 
     @property
     def grpc_config(self):
-        grpc_config = merge_with_default(GRPC_DEFAULT_CONFIG, self.__cluster_description.get("grpc", {}))
-        # specifying both `port` and `ssl_port` leads to erroneous behavior in ydbd, half of the incoming
-        # connections use tls, half do not, so this is prohibited
-        if grpc_config.get("ssl_port") is not None:
-            del grpc_config["port"]
-        return grpc_config
+        return merge_with_default(GRPC_DEFAULT_CONFIG, self.__cluster_description.get("grpc", {}))
 
     @property
     def dynamicnameservice_config(self):