Ciara -- Drops Libel Case ... I'm Too Successful to Sue Future for Defamation

Drops Libel Case

Ciara has a legal problem that actually serves her well ... she can't win her defamation lawsuit against baby daddy Future because she's raking in so much money professionally, she has no damages.

Ciara's lawyer, Larry Stein, just filed legal docs dismissing the remaining libel claim she filed after her ex said some choice things about her, including, "This bitch got control problems."

Problem is ... to win a defamation lawsuit, you have to prove you've suffered financially, and Ciara is actually making more money now than before Future talked smack on her.

So she's dropped the libel claim -- the judge already dismissed a separate defamation claim -- but the case isn't over.

Ciar…