A federal judge has held a proposed class-action lawsuit accusing a manufacturer of violating its employees’ privacy does not belong in federal court.In a written opinion this week, U.S. District Judge Manish S. Shah remanded the suit Salvador Aguilar filed against Rexnord Industries LLC to Cook County Circuit Court.The suit alleges Rexnord is violating the Illinois Biometric Information Privacy Act with its handling of employees’ fingerprints. Rexnord uses a time-clock system that requires employees to scan …