Add dock defender battery tips

1. Remove the dock defender v1 code
2. Add dock defender battery tips and update
   corresponding list item string

Bug:256523472
Test: Unit test passed and manual test on device
Change-Id: Ib6c09df056744142f42f5e2a13252b58e54c7534
Signed-off-by: Zhenwei Chen <zhenwec@google.com>