A former San Diego-area U.S. Border Patrol agent pleaded guilty Thursday in federal court to bribery and drug charges, admitting that he was paid at least $110,000 to use his position to help smuggle drugs and undocumented immigrants across the border from Mexico. Hector Hernandez, 55, pleaded guilty to one count each of attempted distribution of methamphetamine and receiving a bribe by a public official, according to his plea agreement. As part of his deal, prosecutors dropped a second bribery charge. Hernandez agreed as part of the plea deal to forfeit $110,000 in drug trafficking and briber…