Remove use of g_connman / PushInventory in wallet code

This commit does not change behavior.

src/wallet/test/wallet_tests.cpp

@@ -368,7 +368,7 @@ public:
         CCoinControl dummy;
         BOOST_CHECK(wallet->CreateTransaction(*m_locked_chain, {recipient}, tx, reservekey, fee, changePos, error, dummy));
         CValidationState state;
-        BOOST_CHECK(wallet->CommitTransaction(tx, {}, {}, reservekey, nullptr, state));
+        BOOST_CHECK(wallet->CommitTransaction(tx, {}, {}, reservekey, state));
         CMutableTransaction blocktx;
         {
             LOCK(wallet->cs_wallet);