Revert "Disable flakey fallback recents test"

This reverts commit 4c2e3310e61169b7ee0b380f7f5652f657002d90.

Reason for revert: Lets try reverting this now that ag/17006986 landed

Change-Id: If9311a459ce6250d3f8c8341c1210b8bedd5bbbd
diff --git a/quickstep/tests/src/com/android/quickstep/FallbackRecentsTest.java b/quickstep/tests/src/com/android/quickstep/FallbackRecentsTest.java
index 6be2ce6..4529217 100644
--- a/quickstep/tests/src/com/android/quickstep/FallbackRecentsTest.java
+++ b/quickstep/tests/src/com/android/quickstep/FallbackRecentsTest.java
@@ -61,7 +61,6 @@
 
 import org.junit.After;
 import org.junit.Before;
-import org.junit.Ignore;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.rules.RuleChain;
@@ -206,7 +205,6 @@
 
     // b/143488140
     //@NavigationModeSwitch
-    @Ignore("b/218403080")
     @Test
     public void testOverview() {
         startAppFast(getAppPackageName());