Disable InputTracingTest::SimultaneousTracingSessions

The test is flaky and may affect presubmit.

Bug: 336097719
Change-Id: Iebd8cd9076af610b131695efd909c41a79fff5ac
Test: Presubmit
diff --git a/services/inputflinger/tests/InputTracingTest.cpp b/services/inputflinger/tests/InputTracingTest.cpp
index ef0eeae..0404d6d 100644
--- a/services/inputflinger/tests/InputTracingTest.cpp
+++ b/services/inputflinger/tests/InputTracingTest.cpp
@@ -644,7 +644,8 @@
     waitForTracerIdle();
 }
 
-TEST_F(InputTracingTest, SimultaneousTracingSessions) {
+// TODO(b/336097719): Investigate flakiness and re-enable this test.
+TEST_F(InputTracingTest, DISABLED_SimultaneousTracingSessions) {
     auto s1 = std::make_unique<InputTraceSession>(
             [](auto& config) { config->set_mode(AndroidInputEventConfig::TRACE_MODE_TRACE_ALL); });