scripted-diff: test: Replace uses of (dis)?connect_nodes global

-BEGIN VERIFY SCRIPT-

 # max-depth=0 excludes test/functional/test_framework/...
 FILES=$(git grep -l --max-depth 0 "connect_nodes" test/functional)

 # Replace (dis)?connect_nodes(self.nodes[a], b) with self.(dis)?connect_nodes(a, b)
 sed -i 's/\b\(dis\)\?connect_nodes(self\.nodes\[\(.*\)\]/self.\1connect_nodes(\2/g' $FILES

 # Remove imports in the middle of a line
 sed -i 's/\(dis\)\?connect_nodes, //g' $FILES
 sed -i 's/, \(dis\)\?connect_nodes//g' $FILES

 # Remove imports on a line by themselves
 sed -i '/^\s*\(dis\)\?connect_nodes,\?$/d' $FILES
 sed -i '/^from test_framework\.util import connect_nodes$/d' $FILES

-END VERIFY SCRIPT-

Co-authored-by: Elliott Jin <elliott.jin@gmail.com>

test/functional/wallet_hd.py

@@ -10,7 +10,6 @@ import shutil
 from test_framework.test_framework import BitcoinTestFramework
 from test_framework.util import (
     assert_equal,
-    connect_nodes,
     assert_raises_rpc_error,
 )
 
@@ -99,7 +98,7 @@ class WalletHDTest(BitcoinTestFramework):
                 assert_equal(hd_info_2["hdkeypath"], "m/0'/0'/" + str(i) + "'")
             assert_equal(hd_info_2["hdmasterfingerprint"], hd_fingerprint)
         assert_equal(hd_add, hd_add_2)
-        connect_nodes(self.nodes[0], 1)
+        self.connect_nodes(0, 1)
         self.sync_all()
 
         # Needs rescan
@@ -115,7 +114,7 @@ class WalletHDTest(BitcoinTestFramework):
             os.path.join(self.nodes[1].datadir, self.chain, "wallets", self.default_wallet_name, self.wallet_data_filename),
         )
         self.start_node(1, extra_args=self.extra_args[1])
-        connect_nodes(self.nodes[0], 1)
+        self.connect_nodes(0, 1)
         self.sync_all()
         # Wallet automatically scans blocks older than key on startup
         assert_equal(self.nodes[1].getbalance(), NUM_HD_ADDS + 1)
@@ -183,7 +182,7 @@ class WalletHDTest(BitcoinTestFramework):
             # Restart node 1 with keypool of 3 and a different wallet
             self.nodes[1].createwallet(wallet_name='origin', blank=True)
             self.restart_node(1, extra_args=['-keypool=3', '-wallet=origin'])
-            connect_nodes(self.nodes[0], 1)
+            self.connect_nodes(0, 1)
 
             # sethdseed restoring and seeing txs to addresses out of the keypool
             origin_rpc = self.nodes[1].get_wallet_rpc('origin')