Revert "Speed up tests by injecting input events asynchronously"

This reverts commit 4c80053950d9bf0e6c087f430fa5388daa52a2ec.

Reason for revert: Broke tests

Change-Id: I3bd556b3127c0936b18a3fec8202b492d2ecb099
diff --git a/tests/tapl/com/android/launcher3/tapl/LauncherInstrumentation.java b/tests/tapl/com/android/launcher3/tapl/LauncherInstrumentation.java
index 16891e2..c74dea9 100644
--- a/tests/tapl/com/android/launcher3/tapl/LauncherInstrumentation.java
+++ b/tests/tapl/com/android/launcher3/tapl/LauncherInstrumentation.java
@@ -1184,7 +1184,7 @@
 
         final MotionEvent event = getMotionEvent(downTime, currentTime, action, point.x, point.y);
         assertTrue("injectInputEvent failed",
-                mInstrumentation.getUiAutomation().injectInputEvent(event, false));
+                mInstrumentation.getUiAutomation().injectInputEvent(event, true));
         event.recycle();
     }