Merge #23: build: Disable QWidget-based GUI test binary for QML builds

eb38962 build: Disable QWidget-based GUI test binary for QML builds (Hennadii Stepanov)

Pull request description:

  QWidget based `test/test_bitcoin-qt` is useless for QML stuff.

ACKs for top commit:
  jarolrod:
    ACK eb38962

Tree-SHA512: cd15cd171dbc5d6e7b1bdf74992bd134cf2eb0fb4cda71d6a484a94715fe82321d1cff233aae68e7abe3f3310d08357fea954b94029091b56538eedc4e7034a2

Author: hebasto

configure.ac

@@ -1690,6 +1690,9 @@ fi
 
 dnl these are only used when qt is enabled
 BUILD_TEST_QT=""
+if test "x$use_qml" != xno; then
+  use_gui_tests=no
+fi
 if test x$bitcoin_enable_qt != xno; then
   dnl enable dbus support
   AC_MSG_CHECKING([whether to build GUI with support for D-Bus])