scripted-diff: test: Remove brackets after assert

-BEGIN VERIFY SCRIPT-
sed -i --regexp-extended -e 's/assert ?\((.+)\)(( )*)?(#.*)?$/assert \1\3\3\4/g' $(git grep -l --extended-regexp 'assert ?\(' test)
-END VERIFY SCRIPT-

test/functional/wallet_disable.py

@@ -21,9 +21,9 @@ class DisableWalletTest (BitcoinTestFramework):
         # Make sure wallet is really disabled
         assert_raises_rpc_error(-32601, 'Method not found', self.nodes[0].getwalletinfo)
         x = self.nodes[0].validateaddress('3J98t1WpEZ73CNmQviecrnyiWrnqRhWNLy')
-        assert(x['isvalid'] == False)
+        assert x['isvalid'] == False
         x = self.nodes[0].validateaddress('mneYUmWYsuk7kySiURxCi3AGxrAqZxLgPZ')
-        assert(x['isvalid'] == True)
+        assert x['isvalid'] == True
 
         # Checking mining to an address without a wallet. Generating to a valid address should succeed
         # but generating to an invalid address will fail.