Refactor flags of Power Anomaly Tips in Settings Intelligence.(1/2)

- Remove unused flag is_battery_tips_feedback_enabled
- Update logic about is_battery_tips_enabled

Bug: 284893240
Bug: 291689623
Test: Manual
Change-Id: I826f517aa61e0c970048164706c4512ac3e0472d
Merged-In: I826f517aa61e0c970048164706c4512ac3e0472d
7 files changed