Can we just remove the sw_lpm_support from current xhci driver?

[Zengtao (B)]

Hi:

I am recently reading the LPM related code in xhci driver, and I find 
that the xhci->sw_lpm_support is not really used, but I am not sure
 whether we should remove it or not? 

Any ideas, Thanks.

Regards
Zengtao