Revert "Add feature flag to control two panel home in portrait"

This reverts commit b1c36ce938a7a6c948ba5cdd823679d73d974789.

Reason for revert: experiment no longer requried
Bug: 197723099

Change-Id: I585fa4364ab5326a19b099a80a1a02a66370d84f
diff --git a/src/com/android/launcher3/DeviceProfile.java b/src/com/android/launcher3/DeviceProfile.java
index b7d0481..3010be1 100644
--- a/src/com/android/launcher3/DeviceProfile.java
+++ b/src/com/android/launcher3/DeviceProfile.java
@@ -248,8 +248,7 @@
         // Tablet UI does not support emulated landscape.
         isTablet = allowRotation && info.isTablet(windowBounds);
         isPhone = !isTablet;
-        isTwoPanels = isTablet && useTwoPanels
-                && (isLandscape || FeatureFlags.ENABLE_TWO_PANEL_HOME_IN_PORTRAIT.get());
+        isTwoPanels = isTablet && useTwoPanels;
 
         aspectRatio = ((float) Math.max(widthPx, heightPx)) / Math.min(widthPx, heightPx);
         boolean isTallDevice = Float.compare(aspectRatio, TALL_DEVICE_ASPECT_RATIO_THRESHOLD) >= 0;