ASoC: swr-haptics: Remove disable regulator during system suspend

Remove disable regulator during system suspend to avoid soundwire
interrupt during system suspend. This change will ensure that
device enter into power collapse during VoLTE usecase in LPI mode.

Change-Id: Ie15d28de9720b83f93ea1a85258b24faadad0db3
Signed-off-by: Sudheer Papothi <spapothi@codeaurora.org>