Add code to remove redundant UpdateChecks section from config file in first run code

Author: delphidabbler

Src/FirstRun.UConfigFile.pas

@@ -98,6 +98,8 @@   TUserConfigFileUpdater = class(TConfigFileUpdater)
     procedure DeleteNewsPrefs;
     ///  <summary>Deletes unused Prefs:Updating section.</summary>
     procedure DeleteUpdatingPrefs;
+    ///  <summary>Deletes unused UpdateChecks section.</summary>
+    procedure DeleteUpdateChecks;
     ///  <summary>Effectively renames MainWindow section used prior to version
     ///  11 as WindowState:MainForm.</summary>
     procedure RenameMainWindowSection;

Src/FirstRun.UMain.pas

@@ -243,6 +243,7 @@ procedure TFirstRun.UpdateUserCfgFile(out Changes: TFirstRunCfgChangeSet);
     fUserConfigFile.DeleteNewsPrefs;
     fUserConfigFile.DeleteProxyServerSection;
     fUserConfigFile.DeleteUpdatingPrefs;
+    fUserConfigFile.DeleteUpdateChecks;
   end;
 
   {$IFNDEF PORTABLE}