MdeModulePkg UiApp: Remove redundant functions

The functions that are never called have been removed.
They are EnableResetReminderFeature,
DisableResetReminderFeature and DisableResetRequired.
https://bugzilla.tianocore.org/show_bug.cgi?id=1062

Cc: Star Zeng <star.zeng@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: shenglei <shenglei.zhang@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Eric Dong <eric.dong@intel.com>

MdeModulePkg/Application/UiApp/FrontPage.c

@@ -1042,34 +1042,7 @@ UiEntry (
 //
 
 
-/**
-  Enable the setup browser reset reminder feature.
-  This routine is used in platform tip. If the platform policy need the feature, use the routine to enable it.
 
-**/
-VOID
-EFIAPI
-EnableResetReminderFeature (
-  VOID
-  )
-{
-  mFeaturerSwitch = TRUE;
-}
-
-
-/**
-  Disable the setup browser reset reminder feature.
-  This routine is used in platform tip. If the platform policy do not want the feature, use the routine to disable it.
-
-**/
-VOID
-EFIAPI
-DisableResetReminderFeature (
-  VOID
-  )
-{
-  mFeaturerSwitch = FALSE;
-}
 
 
 /**
@@ -1087,19 +1060,6 @@ EnableResetRequired (
 }
 
 
-/**
-  Record the info that  no reset is required.
-  A  module boolean variable is used to record whether a reset is required.
-
-**/
-VOID
-EFIAPI
-DisableResetRequired (
-  VOID
-  )
-{
-  mResetRequired = FALSE;
-}
 
 
 /**