battery: Remove redundant lfcc variable when calculate compensation
battery: Remove redundant lfcc variable when calculate compensation

The value of lfcc variable, which is copied from
host_get_memmap(EC_MEMMAP_BATT_LFCC), is actually the compensated full
capacity. Use the value of *full directly.

BRANCH=None
BUG=b:162604872
TEST=Checked the battery console command result.

Change-Id: Iae103dd325679333c524698ce7a86cdc96a3587e
Signed-off-by: Wai-Hong Tam <04b587fdf5845741a0c5a8b9cd59ca72d73ef8fc@google.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2335885
Reviewed-by: Jett Rink <9d4aef0593e6843318d99df31597fb6153b89787@chromium.org>

coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec