The "mommy track" gender bias suit at Goldman Sachs (NYSE: GS) raised a lot of eyebrows, and was one of several that suggested the changing face of discrimination on Wall Street.

The mommy track suit has now been nixed by Judge Robert Patterson in Manhattan. Reuters notes it wasn't clear why the case was dismissed. It might reflect some sort of settlement between plaintiff Charlotte Hanna and the firm, which is what we expected. But it could also have been dismissed on legal grounds.

Recall that Hanna charged in her suit that she was fired in February 2009 after 11 years at the firm and just one week before her planned return from a second leave. She alleged the bank saw working moms as "second-class citizens."

But Goldman is still fighting a suit brought by Cristina Chen-Oster, a former vice president in convertible bonds; Lisa Parisi, a former managing director in asset management; and Shanna Orlich, a former associate in trading. This case is mainly about career advancement and opportunity, but it also got into a lot of tawdry, boom-boom room-like details.

All this is occurring amid signs that women don't want to work on Wall Street all that much. 

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