Prevent landscape text editing from taking over the screen.

It used to be that we let Android do the default behavior of
full-screening the EditText when in landscape, but honestly I
don't know who prefers that. So I've turned it off.

Fixes #8769

src/org/thoughtcrime/securesms/components/KeyboardAwareLinearLayout.java

@@ -93,11 +93,6 @@ public class KeyboardAwareLinearLayout extends LinearLayoutCompat {
   }
 
   private void updateKeyboardState() {
-    if (isLandscape()) {
-      if (keyboardOpen) onKeyboardClose();
-      return;
-    }
-
     if (viewInset == 0 && Build.VERSION.SDK_INT >= VERSION_CODES.LOLLIPOP) viewInset = getViewInset();
 
     getWindowVisibleDisplayFrame(rect);