Remove timeout from dispatch latch

When debugging event dispatching, the time spent in the dispatch
callback is typically longer than the 5 second timeout. Removing the
timeout is acceptable, as this only affects tests.

Fixes: 157901289
Test: ./gradlew ui:ui-test:cC
Change-Id: I714703e25dd590aed72f00fbe9b0b5bd6865cd26

diff --git a/ui/ui-test/src/main/java/androidx/ui/test/android/AndroidInputDispatcher.kt b/ui/ui-test/src/main/java/androidx/ui/test/android/AndroidInputDispatcher.kt
index 59de9f6..556b1ac 100644
--- a/ui/ui-test/src/main/java/androidx/ui/test/android/AndroidInputDispatcher.kt
+++ b/ui/ui-test/src/main/java/androidx/ui/test/android/AndroidInputDispatcher.kt

@@ -19,6 +19,7 @@
 import android.os.Handler
 import android.os.Looper
 import android.os.SystemClock
+import android.util.Log
 import android.view.MotionEvent
 import android.view.MotionEvent.ACTION_CANCEL
 import android.view.MotionEvent.ACTION_DOWN
@@ -26,11 +27,11 @@
 import android.view.MotionEvent.ACTION_POINTER_DOWN
 import android.view.MotionEvent.ACTION_POINTER_UP
 import android.view.MotionEvent.ACTION_UP
+import androidx.ui.geometry.Offset
 import androidx.ui.test.InputDispatcher
 import androidx.ui.test.InputDispatcherState
 import androidx.ui.test.PartialGesture
 import androidx.ui.unit.Duration
-import androidx.ui.geometry.Offset
 import androidx.ui.unit.inMilliseconds
 import androidx.ui.unit.milliseconds
 import androidx.ui.util.lerp
@@ -397,8 +398,10 @@
                 latch.countDown()
             }
         }
-        check(latch.await(5, TimeUnit.SECONDS)) {
-            "Event $event was not dispatched in 5 seconds"
+        if (!latch.await(5, TimeUnit.SECONDS)) {
+            Log.w("AndroidInputDispatcher", "Dispatching of MotionEvent $event took longer than " +
+                    "5 seconds to complete. This should typically only take a few milliseconds.")
+            latch.await()
         }
     }