wallet, rpc: Remove deprecated balances from getwalletinfo

test/functional/wallet_multiwallet.py

@@ -185,8 +185,7 @@ class MultiWalletTest(BitcoinTestFramework):
         self.nodes[0].loadwallet("w5")
         assert_equal(set(node.listwallets()), {"w4", "w5"})
         w5 = wallet("w5")
-        w5_info = w5.getwalletinfo()
-        assert_equal(w5_info['immature_balance'], 50)
+        assert_equal(w5.getbalances()["mine"]["immature"], 50)
 
         competing_wallet_dir = os.path.join(self.options.tmpdir, 'competing_walletdir')
         os.mkdir(competing_wallet_dir)
@@ -208,7 +207,7 @@ class MultiWalletTest(BitcoinTestFramework):
         self.generatetoaddress(node, nblocks=1, address=wallets[0].getnewaddress(), sync_fun=self.no_op)
         for wallet_name, wallet in zip(wallet_names, wallets):
             info = wallet.getwalletinfo()
-            assert_equal(info['immature_balance'], 50 if wallet is wallets[0] else 0)
+            assert_equal(wallet.getbalances()["mine"]["immature"], 50 if wallet is wallets[0] else 0)
             assert_equal(info['walletname'], wallet_name)
 
         # accessing invalid wallet fails