power: smb5: Restore full FCC to main once CP is disabled

Remove WLS_PL_CHARGING_VOTER's vote after both charge pumps get turned
off so that the main charger is configured to full FCC, to support
charging.

Change-Id: I46c3ba8a6697024a4561825f211712201f123a80
Signed-off-by: Guru Das Srinagesh <gurus@codeaurora.org>
Signed-off-by: Sahil Chandna <chandna@codeaurora.org>