Cleanup (outdated anti-focus-stealing hack dropped)

platform/platform-impl/src/com/intellij/openapi/wm/impl/IdeFrameImpl.java

@@ -77,8 +77,6 @@ public class IdeFrameImpl extends JFrame implements IdeFrameEx, DataProvider {
 
   private static boolean myUpdatingTitle;
 
-  private static String xdgCurrentDesktop = System.getenv("XDG_CURRENT_DESKTOP");
-
   private String myTitle;
   private String myFileTitle;
   private File myCurrentFile;
@@ -116,10 +114,6 @@ public class IdeFrameImpl extends JFrame implements IdeFrameEx, DataProvider {
 
     myBalloonLayout = new BalloonLayoutImpl(myRootPane, new Insets(8, 8, 8, 8));
 
-    if (!Registry.is("ide.windowSystem.focusAppOnStartup") && !isThereActiveFrame()) {
-      setFocusableWindowState(false);
-    }
-
     // to show window thumbnail under Macs
     // http://lists.apple.com/archives/java-dev/2009/Dec/msg00240.html
     if (SystemInfo.isMac) setIconImage(null);
@@ -206,22 +200,12 @@ public class IdeFrameImpl extends JFrame implements IdeFrameEx, DataProvider {
     return null;
   }
 
-  public static boolean isThereActiveFrame() {
-    Frame[] all = Frame.getFrames();
-    for (Frame each : all) {
-      if (each.isActive()) {
-        return true;
-      }
-    }
-
-    return false;
-  }
-
   @SuppressWarnings({"deprecation", "SSBasedInspection"})
   @Override
   public void show() {
     super.show();
     SwingUtilities.invokeLater(new Runnable() {
+      @Override
       public void run() {
         setFocusableWindowState(true);
       }

platform/util/resources/misc/registry.properties

@@ -85,7 +85,6 @@ ide.appIcon.requestAttention=true
 
 ide.windowSystem.hScrollChars=5
 ide.windowSystem.vScrollChars=5
-ide.windowSystem.focusAppOnStartup=true
 ide.windowSystem.autoShowProcessPopup=false
 ide.windowSystem.showListItemsPopup=true
 ide.windowSystem.asyncSplitters=true