Remove the broken "Expire in deleted order" setting.

Unfortunately, this setting has been broken since the day it was
committed.  When disabled, this setting could cause non-deleted
programs to be expired before deleted programs when the Auto
Expirer was trying to free up disk space.  The desired effect
of the setting is now already handled by default, expiring deleted
programs in a FIFO order on a particular filesystem.  The first
program deleted is the first to be expired for disk space if
necessary.

mythtv/programs/mythbackend/autoexpire.cpp

@@ -967,8 +967,6 @@ void AutoExpire::FillDBOrdered(pginfolist_t &expireList, int expMethod)
             orderby = "lastmodified ASC";
             break;
         case emNormalDeletedPrograms:
-            if (gCoreContext->GetNumSetting("DeletedFifoOrder", 0) == 0)
-                return;
             msg = "Adding deleted programs in FIFO order";
             where = "recgroup = 'Deleted'";
             orderby = "lastmodified ASC";

mythtv/programs/mythfrontend/globalsettings.cpp

@@ -307,17 +307,6 @@ static GlobalSpinBox *DeletedMaxAge()
     return bs;
 };
 
-static GlobalCheckBox *DeletedFifoOrder()
-{
-    GlobalCheckBox *cb = new GlobalCheckBox("DeletedFifoOrder");
-    cb->setLabel(QObject::tr("Expire in deleted order"));
-    cb->setValue(false);
-    cb->setHelpText(QObject::tr(
-                    "If enabled, delete recordings in the order which they were "
-                    "originally deleted."));
-    return cb;
-};
-
 #if 0
 class DeletedExpireOptions : public TriggeredConfigurationGroup
 {
@@ -332,7 +321,6 @@ class DeletedExpireOptions : public TriggeredConfigurationGroup
 
              HorizontalConfigurationGroup* settings =
                  new HorizontalConfigurationGroup(false);
-             settings->addChild(DeletedFifoOrder());
              settings->addChild(DeletedMaxAge());
              addTarget("1", settings);
 
@@ -3425,7 +3413,6 @@ GeneralSettings::GeneralSettings()
 
     autoexp->addChild(expgrp);
 //    autoexp->addChild(new DeletedExpireOptions());
-    autoexp->addChild(DeletedFifoOrder());
     autoexp->addChild(DeletedMaxAge());
 
     addChild(autoexp);