You should not remove the full u-shaped safety lever, that wraps around the sear housing. The lever keeps the sear pin in place. The sear pin head locks the ejector in place. With the lever removed, the sear pin can move outward, and if the sear pin moves out too far, the ejector could move forward, which would cause issues. You could cut the exposed thumb safety off, which would not cause any problems, but don't completely remove the lever, unless you find a way to keep the sear pin from moving outward.
Bob