Case closed —Josh Giddeyis no longer facing charges for his rumored relationship with an alleged minor. The Newport Beach Police Department has cleared the 21-year-old NBA player of any crime, RadarOnline.com has learned. An investigation into the Oklahoma City Thunder guard’s love life was launched in November. Two months later, the authorities have confirmed they closed the case, with officials telling TMZ they found no corroborating evidence. As RadarOnline.com reported, Giddey was accused of having relations with a teen said to be a high school junior. The girl — allegedly based in the New…