The phrase "abandon that part" is correct and usable in written English.
You can use it when instructing someone to leave out or discard a specific section or element of something.
Example: "After reviewing the proposal, I think we should abandon that part about the budget, as it doesn't align with our current goals."
Alternatives: "discard that section" or "omit that part".
It's who we are, and there is no reason to abandon that part of us; however, there comes a point when we must help ourselves.
With no guides to the Comanches, he was forced to abandon that part of the mission; instead, he returned south into Kansas, where he attempted to follow Melgares's trail toward the Arkansas.
That was jarring for a team traditionally so good against the run that opponents simply abandoned that part of the game.
When Facebook decided stories about users opening click-bait articles in Open Graph News Readers weren't valuable enough, it downranked the apps, traffic dried up and publishers abandoned that part of the platform.
Under immense public pressure, the City Council eventually abandoned that part of Landrieu's "safety plan," but proceeded to post around 100 red-and-blue blinking cameras around the city, many right outside of surprised homeowners' windows.
The former England player C. B. Fry said that Miller was "a batsman already great...who is likely, later on, to challenge the feats of Australia's champions of the past...Miller has something of the dash and generous abandon that were part of Victor Trumper's charm".
Of the two PCTs which eventually gave permission, only a handful of GPs had agreed to act as PICs by our extended deadline, leading to us having to abandon this part of the study.
So take a quick look around, check you're not offending anyone - then strip off, and jump in … For me, a tan isn't a tan without a tanline: brown bodies and white bottoms bouncing headlong towards water have a wayward abandon that is lost when no part of the body has been kept private from sun.
When he went to Mr. Irving with the idea for "Door," he knew he wanted to break off the first section, abandoning the part of the novel that goes on for 30 more years.
Anti-bullfighting organisations like MAC (Colombian Anti-bullfighting Movementhatrgue that we need to abandon idea that bullfighting is part of art and culture, and focus on the pain the bull feels just for the sake of the spectacle.
They're trying to make some claim that we're ignoring this part of the business, or abandoning this part of the business, and it simply isn't true".
