One person has taken Avengers: Endgame and edited out all of the women. Additionally, the editor has gone through and removed any scenes which he deemed to be "gay." This is nothing new to the world of Disney who saw similar results when The Last Jedi was released in 2017. There is a faction of fans who are not into seeing females taking on lead roles, so Daisy Ridley's Rey was removed, along with Kelly Marie Tran's Rose Tico and Carrie Fisher's Leia Organa.
Now, Endgame has been targeted and it has been dubbed the "defeminized" version. Carol Danvers no longer saves the day and brings Tony Stark back to Earth within the first ten minutes of the movie, Pepper Potts doesn't suit up as Rescue, Natasha Romanoff doesn't sacrifice her life for the Soul Stone, Valkyrie doesn't become the King of New Asgard, etc. It's scary to think about how much work went into editing a bootleg version of Endgame to have it regurgitated back out and into the world with several missing scenes that are all rather crucial to the plot.
The female team of Avengers going on to rescue Peter Parker is also removed. T'Challa's part, which was small to begin with, is removed too. If there are scenes where men are hugging, they have been removed for being "gay." The editor of the "defeminized" version of Endgame is just trying to cause a stir and get a reaction out of Marvel Cinematic Universe fans. In other words, this is just some extra trolling, which isn't all that new and unique these days, unfortunately. While there are more than likely some fans who will check out the pirated version out of curiosity, many will not even bother.
Under the umbrella of Disney, Marvel Studios and Lucasfilm have been criticized for adding diversity to their movies over the years. The Force Awakens, The Last Jedi, Black Panther, Captain Marvel, Infinity War, and Endgame have all been hit pretty hard by trolls who are unhappy with the forward movement of the respective franchises. Some believe it's too much too soon, while others don't seem to be into the idea of moving forward at all or trying something different.
The "defeminized" version of Avengers: Endgame will not be seeing the light of day officially, which is obvious. On the opposite side of the spectrum, Marvel Studios is preparing to release Endgame with additional footage in order to become the highest grossing movie of all time, so there will probably end up being more women in the movie than ever before. Whatever the case may be, Marvel Studios and Lucasfilm aren't really too bothered by this sort of thing and for the most part, neither is the general public who helps to make these movies some of the biggest in cinematic history. NPR was the first to report about the "defeminized" cut of Avengers: Endgame.