This is Michael Bay stepping away from the controversy.
When the last Transformers was released, some people were offended by two allegedly stereotypical and "racist" robots, The Twins, Mudflap and Skids.
The heavy criticism might have been avoided had it not been for the characters' use of "exaggerated slang." Also, the gold-tooth and inability to read didn't help.
So instead of standing by his creations, Michael is taking the easy way out and just tossing them. He officially announced that The Twins won't be making it into the next Transformer's flick.
So, you are a racist and coward? Now we get it.