simplewallet: remove XMR mentions

They are actually wrong if the wallet is setup in a different
denomination, and it's incursion of extrinsic lingo where monero
fits perfectly in the first place.

src/simplewallet/simplewallet.cpp

@@ -1974,7 +1974,7 @@ void simple_wallet::on_money_received(uint64_t height, const crypto::hash &txid,
   message_writer(console_color_green, false) << "\r" <<
     tr("Height ") << height << ", " <<
     tr("txid ") << txid << ", " <<
-    print_money(amount) << tr(" XMR, ") <<
+    print_money(amount) <<
     tr("idx ") << subaddr_index;
   if (m_auto_refresh_refreshing)
     m_cmd_binder.print_prompt();
@@ -3395,7 +3395,7 @@ bool simple_wallet::donate(const std::vector<std::string> &args_)
   local_args.push_back(amount_str);
   if (!payment_id_str.empty())
     local_args.push_back(payment_id_str);
-  message_writer() << tr("Donating ") << amount_str << " XMR to The Monero Project (donate.getmonero.org/44AFFq5kSiGBoZ4NMDwYtN18obc8AemS33DBLWs3H7otXft3XjrpDtQGv7SqSsaBYBb98uNbr2VBBEt7f2wfn3RVGQBEP3A).";
+  message_writer() << tr("Donating ") << amount_str << " to The Monero Project (donate.getmonero.org/44AFFq5kSiGBoZ4NMDwYtN18obc8AemS33DBLWs3H7otXft3XjrpDtQGv7SqSsaBYBb98uNbr2VBBEt7f2wfn3RVGQBEP3A).";
   transfer_new(local_args);
   return true;
 }