Disable Future.BatonWait test on mobile

Reviewed By: amajeed1

Differential Revision: D14496345

fbshipit-source-id: 985e5299930c3812e7510f6dfe7bdcd3ce3519cf

folly/futures/test/FutureTest.cpp

@@ -1626,6 +1626,7 @@ TEST(Future, ThenRecursion) {
   EXPECT_EQ(42, recursion(&executor, 100000).getVia(&executor));
 }
 
+#if FOLLY_FUTURE_USING_FIBER
 TEST(Future, BatonWait) {
   auto baton = std::make_unique<fibers::Baton>();
   bool posted{false};
@@ -1643,3 +1644,4 @@ TEST(Future, BatonWait) {
       .getVia(&executor);
   EXPECT_TRUE(postFuture.isReady());
 }
+#endif