Remove the dead skill and power DB loaders

Deletes the uncalled static_rune_skill_adjusts, static_rune_maxskills,
static_skill_skillsgranted, static_skill_skillreq and static_power_powergrant
loaders and their ResultSet constructors. LOAD_RUNE_POWERS stays for the 14
Magister Captain guard contract ids. No value changes.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/engine/db/handlers/dbSkillReqHandler.java

@@ -76,24 +76,4 @@ public class dbSkillReqHandler extends dbHandlerBase {
             Logger.error(e);
         }
     }
-
-    public ArrayList<SkillReq> GET_REQS_FOR_RUNE(final int objectUUID) {
-
-        ArrayList<SkillReq> skillReqsList = new ArrayList<>();
-
-        try (Connection connection = DbManager.getConnection();
-             PreparedStatement preparedStatement = connection.prepareStatement("SELECT * FROM `static_skill_skillreq` WHERE `runeID`=?")) {
-
-            preparedStatement.setInt(1, objectUUID);
-
-            ResultSet rs = preparedStatement.executeQuery();
-            skillReqsList = getObjectsFromRs(rs, 5);
-
-        } catch (SQLException e) {
-            Logger.error(e);
-        }
-
-        return skillReqsList;
-    }
-
 }