scripted-diff: validateaddress to getaddressinfo in tests

Change all instances of validateaddress to getaddressinfo since it seems that
no test actually uses validateaddress for actually validating addresses.

-BEGIN VERIFY SCRIPT-
find ./test/functional -path '*py' -not -path ./test/functional/wallet_disable.py -not -path ./test/functional/rpc_deprecated.py -not -path ./test/functional/wallet_address_types.py -exec sed -i'' -e 's/validateaddress/getaddressinfo/g' {} \;
-END VERIFY SCRIPT-

test/functional/test_framework/blocktools.py

@@ -149,7 +149,7 @@ def create_witness_tx(node, use_p2wsh, utxo, pubkey, encode_p2sh, amount):
     else:
         addr = key_to_p2sh_p2wpkh(pubkey) if encode_p2sh else key_to_p2wpkh(pubkey)
     if not encode_p2sh:
-        assert_equal(node.validateaddress(addr)['scriptPubKey'], witness_script(use_p2wsh, pubkey))
+        assert_equal(node.getaddressinfo(addr)['scriptPubKey'], witness_script(use_p2wsh, pubkey))
     return node.createrawtransaction([utxo], {addr: amount})
 
 # Create a transaction spending a given utxo to a segwit output corresponding