autotests: Force breeze_cursors cursor theme

Distros like Fedora don't ship Vanilla-DMZ cursor theme.

autotests/integration/generic_scene_opengl_test.cpp

@@ -61,7 +61,7 @@ void GenericSceneOpenGLTest::initTestCase()
     config->sync();
     kwinApp()->setConfig(config);
 
-    qputenv("XCURSOR_THEME", QByteArrayLiteral("DMZ-White"));
+    qputenv("XCURSOR_THEME", QByteArrayLiteral("breeze_cursors"));
     qputenv("XCURSOR_SIZE", QByteArrayLiteral("24"));
     qputenv("KWIN_COMPOSE", m_envVariable);
 

autotests/integration/pointer_input.cpp

@@ -122,12 +122,7 @@ void PointerInputTest::initTestCase()
 
     kwinApp()->setConfig(KSharedConfig::openConfig(QString(), KConfig::SimpleConfig));
 
-    if (!QStandardPaths::locateAll(QStandardPaths::GenericDataLocation, QStringLiteral("icons/DMZ-White/index.theme")).isEmpty()) {
+    qputenv("XCURSOR_THEME", QByteArrayLiteral("breeze_cursors"));
-        qputenv("XCURSOR_THEME", QByteArrayLiteral("DMZ-White"));
-    } else {
-        // might be vanilla-dmz (e.g. Arch, FreeBSD)
-        qputenv("XCURSOR_THEME", QByteArrayLiteral("Vanilla-DMZ"));
-    }
     qputenv("XCURSOR_SIZE", QByteArrayLiteral("24"));
     qputenv("XKB_DEFAULT_RULES", "evdev");