Revert "Handle uiMode changes in QuickstepLauncher"

Revert submission 27627108-b/339747262

Reason for revert: b/353914086
Fix: 353450667
Fix: 353914086
Bug: 339747262

Reverted changes: /q/submissionid:27627108-b/339747262

Change-Id: I9a71ee0fa4062b15e68eff41951f42d46ace19d3
diff --git a/quickstep/AndroidManifest.xml b/quickstep/AndroidManifest.xml
index 4abf6e1..bf198b6 100644
--- a/quickstep/AndroidManifest.xml
+++ b/quickstep/AndroidManifest.xml
@@ -80,7 +80,7 @@
              android:stateNotNeeded="true"
              android:theme="@style/LauncherTheme"
              android:screenOrientation="behind"
-             android:configChanges="keyboard|keyboardHidden|mcc|mnc|navigation|orientation|screenSize|screenLayout|smallestScreenSize|uiMode"
+             android:configChanges="keyboard|keyboardHidden|mcc|mnc|navigation|orientation|screenSize|screenLayout|smallestScreenSize"
              android:resizeableActivity="true"
              android:resumeWhilePausing="true"
              android:enableOnBackInvokedCallback="false"