test: qemuxml2argv: Drop QEMU_CAPS_DEVICE uses

Since commit 51045df0, the QEMU_CAPS_DEVICE capability is enabled
automatically and shouldn't be passed as an argument to DO_TEST();
however, commit 998a936c accidentally introduced few such uses.

tests/qemuxml2argvtest.c

@@ -1700,18 +1700,18 @@ mymain(void)
             QEMU_CAPS_MACH_VIRT_GIC_VERSION);
     DO_TEST_FAILURE("aarch64-gic-v3",
             QEMU_CAPS_KVM, QEMU_CAPS_MACHINE_OPT, QEMU_CAPS_CPU_HOST);
-    DO_TEST("aarch64-gic-host", QEMU_CAPS_DEVICE,
+    DO_TEST("aarch64-gic-host",
             QEMU_CAPS_KVM, QEMU_CAPS_MACHINE_OPT, QEMU_CAPS_CPU_HOST,
             QEMU_CAPS_MACH_VIRT_GIC_VERSION);
-    DO_TEST_FAILURE("aarch64-gic-host", QEMU_CAPS_DEVICE,
+    DO_TEST_FAILURE("aarch64-gic-host",
             QEMU_CAPS_KVM, QEMU_CAPS_MACHINE_OPT, QEMU_CAPS_CPU_HOST);
-    DO_TEST_PARSE_ERROR("aarch64-gic-invalid", QEMU_CAPS_DEVICE,
+    DO_TEST_PARSE_ERROR("aarch64-gic-invalid",
             QEMU_CAPS_KVM, QEMU_CAPS_MACHINE_OPT, QEMU_CAPS_CPU_HOST,
             QEMU_CAPS_MACH_VIRT_GIC_VERSION);
-    DO_TEST_FAILURE("aarch64-gic-not-virt", QEMU_CAPS_DEVICE,
+    DO_TEST_FAILURE("aarch64-gic-not-virt",
             QEMU_CAPS_KVM, QEMU_CAPS_MACHINE_OPT, QEMU_CAPS_CPU_HOST,
             QEMU_CAPS_MACH_VIRT_GIC_VERSION);
-    DO_TEST_FAILURE("aarch64-gic-not-arm", QEMU_CAPS_DEVICE,
+    DO_TEST_FAILURE("aarch64-gic-not-arm",
             QEMU_CAPS_KVM, QEMU_CAPS_MACHINE_OPT, QEMU_CAPS_CPU_HOST,
             QEMU_CAPS_MACH_VIRT_GIC_VERSION);