message: Remove duplicate GP name
diff: @@ -1179,7 +1179,6 @@ iCivKorea : {
  "fHwang Jini", # 16th
  "fSin Saimdang", # 16th
  "fHeo Nanseolheon", # 16th
  - "Jeong Seon", # 17th
  "Yun Duseo", # 17th
  "Kim Hong-do", # 18th
  "Jeong Seon", # 18th
  