Revert "patch XScreenSaver settings"

This reverts commit ab0724c191bbaeed4f8e50ecdd271452c40c78ab.
Revert "turn off DPMS and blanking. This file will working if xscreensaver"

This reverts commit de0dd8100ca759763978384769ee9e3a1bfa7b68.
Revert "set and config the default background"

This reverts commit 8c2ed4f204b3f434b2fea9ebc7da050a57717942.
Revert "lxpanel to top by default"

This reverts commit 4f6a0385734a72150cca68aaf5accf7f3957906c.