Don't call SearchManager.isVisible() in Launcher.

SearchManager.isVisible() is a hidden method that should
not be used by applications. Also, SearchManager.stopSearch()
already checks whether the search dialog is visible before
tryinf to dimiss it, so the check in Launcher was redundant.

src/com/android/launcher/Launcher.java

@@ -1244,9 +1244,7 @@ public final class Launcher extends Activity implements View.OnClickListener, On
     void stopSearch() {
         // Close search dialog
         SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
-        if (searchManager.isVisible()) {
         searchManager.stopSearch();
-        }
         // Restore search widget to its normal position
         Search searchWidget = mWorkspace.findSearchWidgetOnCurrentScreen();
         if (searchWidget != null) {