According to a 9to5Mac report, the battery life estimates have been removed because they are no longer accurate.
Our understanding is the reason is due to how the latest low-power processors work in addition to relatively newly introduced iCloud syncing features in macOS Sierra. The inaccurate ‘time remaining’ predictions were unable to keep up with or provide accurate information for users on the newest machines. Apple investigated the battery life complaints extensively over the last couple of weeks and came to the conclusion that batteries in the new MacBook Pros are behaving as expected, according to sources familiar with the investigation.
Will this be a feature you miss? Were your time remaining estimates accurate? Let us know in the comments.