Disable serializeManyIncomingIpcs, which OOMs on cuttlefish

Bug: 251853065
Bug: 253046405
Test: presubmit
Change-Id: Icc15060f78145c84e2ed8a405ede305d31c26b47

packages/SystemUI/tests/src/com/android/systemui/util/kotlin/IpcSerializerTest.kt

@@ -26,6 +26,7 @@ import kotlinx.coroutines.launch
 import kotlinx.coroutines.runBlocking
 import kotlinx.coroutines.withContext
 import org.junit.Assert.assertTrue
+import org.junit.Ignore
 import org.junit.Test
 import org.junit.runner.RunWith
 
@@ -35,6 +36,7 @@ class IpcSerializerTest : SysuiTestCase() {
 
     private val serializer = IpcSerializer()
 
+    @Ignore("b/253046405")
     @Test
     fun serializeManyIncomingIpcs(): Unit = runBlocking(Dispatchers.Main.immediate) {
         val processor = launch(start = CoroutineStart.LAZY) { serializer.process() }