follow-up testnet4 stuff: trivial clean-up

re https://github.com/spesmilo/electrum/pull/9197

localhost in servers list should only be for regtest-like networks

electrum/constants.py

@@ -158,8 +158,6 @@ class BitcoinTestnet(AbstractNet):
 class BitcoinTestnet4(BitcoinTestnet):
 
     NET_NAME = "testnet4"
-    SEGWIT_HRP = "tb"
-    BOLT11_HRP = SEGWIT_HRP
     GENESIS = "00000000da84f2bafbbc53dee25a72ae507ff4914b867c565be350b0da8bf043"
     DEFAULT_SERVERS = read_json('servers_testnet4.json', {})
     CHECKPOINTS = read_json('checkpoints_testnet4.json', [])

electrum/servers_testnet4.json

@@ -1,10 +1,4 @@
 {
-    "127.0.0.1": {
-        "pruning": "-",
-        "s": "51002",
-        "t": "51001",
-        "version": "1.4"
-    },
     "testnet4-electrumx.wakiyamap.dev": {
         "pruning": "-",
         "s": "51002",

electrum/simple_config.py

@@ -254,7 +254,7 @@ class SimpleConfig(Logger):
         if self.get('testnet'):
             path = os.path.join(path, 'testnet')
             make_dir(path, allow_symlink=False)
-        if self.get('testnet4'):
+        elif self.get('testnet4'):
             path = os.path.join(path, 'testnet4')
             make_dir(path, allow_symlink=False)
         elif self.get('regtest'):