Remove unnecessary coroutine dependency

Test: atest FlickerLibTest
Change-Id: I1d1bc2e9aaec40c5482d15e36ab5e1f93dae25fc
diff --git a/libraries/flicker/Android.bp b/libraries/flicker/Android.bp
index 1697ef9..02892aa 100644
--- a/libraries/flicker/Android.bp
+++ b/libraries/flicker/Android.bp
@@ -44,7 +44,6 @@
         "platform-test-core-rules",
         "health-testing-utils",
         "collector-device-lib",
-        "kotlinx-coroutines-android",
     ],
 }