diff --git a/chia/farmer/farmer.py b/chia/farmer/farmer.py
index 760f6c3f18f8..5d9a6c7c5ed9 100644
--- a/chia/farmer/farmer.py
+++ b/chia/farmer/farmer.py
@@ -19,7 +19,7 @@
 from chia.daemon.keychain_proxy import KeychainProxy, connect_to_keychain_and_validate, wrap_local_keychain
 from chia.plot_sync.delta import Delta
 from chia.plot_sync.receiver import Receiver
-from chia.pools.pool_config import PoolWalletConfig, add_auth_key, load_pool_config, update_pool_url
+from chia.pools.pool_config import PoolWalletConfig, load_pool_config, update_pool_url
 from chia.protocols import farmer_protocol, harvester_protocol
 from chia.protocols.pool_protocol import (
     AuthenticationPayload,
@@ -531,8 +531,6 @@ async def update_pool_state(self) -> None:
                     self.log.error(f"Could not find authentication sk for {p2_singleton_puzzle_hash}")
                     continue
 
-                add_auth_key(self._root_path, pool_config, authentication_sk.get_g1())
-
                 if p2_singleton_puzzle_hash not in self.pool_state:
                     self.pool_state[p2_singleton_puzzle_hash] = {
                         "p2_singleton_puzzle_hash": p2_singleton_puzzle_hash.hex(),
diff --git a/chia/pools/pool_config.py b/chia/pools/pool_config.py
index 84a9e2e83d0f..cc106546615d 100644
--- a/chia/pools/pool_config.py
+++ b/chia/pools/pool_config.py
@@ -62,26 +62,6 @@ def load_pool_config(root_path: Path) -> List[PoolWalletConfig]:
     return ret_list
 
 
-# TODO: remove this a few versions after 1.3, since authentication_public_key is deprecated. This is here to support
-# downgrading to versions older than 1.3.
-def add_auth_key(root_path: Path, pool_wallet_config: PoolWalletConfig, auth_key: G1Element) -> None:
-    def update_auth_pub_key_for_entry(config_entry: Dict[str, Any]) -> bool:
-        auth_key_hex = bytes(auth_key).hex()
-        if config_entry.get("authentication_public_key", "") != auth_key_hex:
-            config_entry["authentication_public_key"] = auth_key_hex
-
-            return True
-
-        return False
-
-    update_pool_config_entry(
-        root_path=root_path,
-        pool_wallet_config=pool_wallet_config,
-        update_closure=update_auth_pub_key_for_entry,
-        update_log_message=f"Updating pool config for auth key: {auth_key}",
-    )
-
-
 def update_pool_url(root_path: Path, pool_wallet_config: PoolWalletConfig, pool_url: str) -> None:
     def update_pool_url_for_entry(config_entry: Dict[str, Any]) -> bool:
         if config_entry.get("pool_url", "") != pool_url:
@@ -107,21 +87,20 @@ def update_pool_config_entry(
 ) -> None:
     with lock_and_load_config(root_path, "config.yaml") as config:
         pool_list = config["pool"].get("pool_list", [])
+        if pool_list is None:
+            return
         updated = False
-        if pool_list is not None:
-            for pool_config_dict in pool_list:
-                try:
-                    if hexstr_to_bytes(pool_config_dict["owner_public_key"]) == bytes(
-                        pool_wallet_config.owner_public_key
-                    ):
-                        if update_closure(pool_config_dict):
-                            updated = True
-                except Exception as e:
-                    log.error(f"Exception updating config: {pool_config_dict} {e}")
-        if updated:
-            log.info(update_log_message)
-            config["pool"]["pool_list"] = pool_list
-            save_config(root_path, "config.yaml", config)
+        for pool_config_dict in pool_list:
+            try:
+                if hexstr_to_bytes(pool_config_dict["owner_public_key"]) == bytes(pool_wallet_config.owner_public_key):
+                    if update_closure(pool_config_dict):
+                        updated = True
+            except Exception as e:
+                log.error(f"Exception updating config: {pool_config_dict} {e}")
+    if updated:
+        log.info(update_log_message)
+        config["pool"]["pool_list"] = pool_list
+        save_config(root_path, "config.yaml", config)
 
 
 async def update_pool_config(root_path: Path, pool_config_list: List[PoolWalletConfig]) -> None: