Remove obsolete pruneDexCache

        }

    }

    public int pruneDexCache(String cacheSubDir) {

        return mInstaller.execute("prunedexcache " + cacheSubDir);

    }

    public int freeCache(long freeStorageSize) {

        StringBuilder builder = new StringBuilder("freecache");

        builder.append(' ');

                }

            }

            if (didDexOptLibraryOrTool) {

                // If we dexopted a library or tool, then something on the system has

                // changed. Consider this significant, and wipe away all other

                // existing dexopt files to ensure we don't leave any dangling around.

                //

                // TODO: This should be revisited because it isn't as good an indicator

                // as it used to be. It used to include the boot classpath but at some point

                // DexFile.isDexOptNeeded started returning false for the boot

                // class path files in all cases. It is very possible in a

                // small maintenance release update that the library and tool

                // jars may be unchanged but APK could be removed resulting in

                // unused dalvik-cache files.

                for (String dexCodeInstructionSet : dexCodeInstructionSets) {

                    mInstaller.pruneDexCache(dexCodeInstructionSet);

                }

                // Additionally, delete all dex files from the root directory

                // since there shouldn't be any there anyway, unless we're upgrading

                // from an older OS version or a build that contained the "old" style

                // flat scheme.

                mInstaller.pruneDexCache(".");

            }

            // Collect vendor overlay packages.

            // (Do this before scanning any apps.)

            // For security and version matching reason, only consider