Fix crash when deleting a flightlog entry

data/modules/FlightLog/FlightLogEntries.lua

@@ -49,8 +49,8 @@ function FlightLogEntry.Base:GetEntry()
 	return self.entry
 end
 
----@return boolean true if this has a Delete() method
-function FlightLogEntry.Base:SupportsDelete()
+---@return boolean true if this can be removed from the flightlog method
+function FlightLogEntry.Base:CanBeRemoved()
 	return false
 end
 
@@ -303,17 +303,10 @@ function FlightLogEntry.Custom:GetDataPairs( earliest_first )
 end
 
 ---@return boolean true if this has a Delete() method
-function FlightLogEntry.Custom:SupportsDelete()
+function FlightLogEntry.Custom:CanBeRemoved()
 	return true
 end
 
----Delete this entry
----@return nil
-function FlightLogEntry.Custom:Delete()
-	FlightLogEntry.TotalDefaultElements = FlightLogEntry.TotalDefaultElements - 1
-	utils.remove_elem( FlightLogData, self )
-end
-
 ---@class FlightLogEntry.Station : FlightLogEntry.Base
 ---@field systemp 	SystemPath	The system the player is in when the log was written
 ---@field time		deptime		The game time the log was made, on departure from teh system, relative to the epoch

data/pigui/modules/info-view/06-flightlog.lua

@@ -113,9 +113,9 @@ local function renderLog( formatter )
 			ui.nextColumn()
 		end
 
-		if entry:SupportsDelete() then
+		if entry:CanBeRemoved() then
 			if ui.iconButton(icons.trashcan, buttonSpaceSize, l.REMOVE .. "##custom" .. counter) then
-				entry:Delete()
+				FlightLog:RemoveEntry( entry )
 				-- if we were already in edit mode, reset it, or else it carries over to next iteration
 				entering_text = false
 			end