Shorten first boot time by filtering dexopted apps by LRU.

No longer dexopt all system apps and boot listener user apps.

Bug: 23628238
Bug: https://code.google.com/p/android/issues/detail?id=186589

(cherry-picked from commit b84cb9e)

Change-Id: Id1a1ca9f46777f9e62df3d4f25e98a2837fabf37

services/core/java/com/android/server/pm/PackageManagerService.java

@@ -6083,41 +6083,6 @@ public void performBootDexOpt() {
                     it.remove();
                 }
             }
-            // Give priority to system apps.
-            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
-                PackageParser.Package pkg = it.next();
-                if (isSystemApp(pkg) && !pkg.isUpdatedSystemApp()) {
-                    if (DEBUG_DEXOPT) {
-                        Log.i(TAG, "Adding system app " + sortedPkgs.size() + ": " + pkg.packageName);
-                    }
-                    sortedPkgs.add(pkg);
-                    it.remove();
-                }
-            }
-            // Give priority to updated system apps.
-            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
-                PackageParser.Package pkg = it.next();
-                if (pkg.isUpdatedSystemApp()) {
-                    if (DEBUG_DEXOPT) {
-                        Log.i(TAG, "Adding updated system app " + sortedPkgs.size() + ": " + pkg.packageName);
-                    }
-                    sortedPkgs.add(pkg);
-                    it.remove();
-                }
-            }
-            // Give priority to apps that listen for boot complete.
-            intent = new Intent(Intent.ACTION_BOOT_COMPLETED);
-            pkgNames = getPackageNamesForIntent(intent);
-            for (Iterator<PackageParser.Package> it = pkgs.iterator(); it.hasNext();) {
-                PackageParser.Package pkg = it.next();
-                if (pkgNames.contains(pkg.packageName)) {
-                    if (DEBUG_DEXOPT) {
-                        Log.i(TAG, "Adding boot app " + sortedPkgs.size() + ": " + pkg.packageName);
-                    }
-                    sortedPkgs.add(pkg);
-                    it.remove();
-                }
-            }
             // Filter out packages that aren't recently used.
             filterRecentlyUsedApps(pkgs);
             // Add all remaining apps.