Former Philadelphia Eagles wide receiver DeSean Jackson was denied his plea to keep his custody battle with his ex hidden from the public — after claiming she had been “brainwashed” and had no interest in being around for their 2 young boys. According to court documents obtained by RadarOnline.com, a Los Angeles Superior Court judge shut down Jackson’s motion asking for the entire case to be sealed. The judge ruled that the case would not be sealed because Jackson had failed to show that “immediate irreparable harm” would occur if his request was not granted. As RadarOnline.com previously repo…