SecurityPkg/OpalPassword: Update strings on Opal Setup page

https://bugzilla.tianocore.org/show_bug.cgi?id=1506
Updated some descriptions on SETUP page to avoid user confusion.
Currently it shows "1.0 UEFI Opal Driver", however it may be mislead user to think
it is only for Opal drive but not for Pyrite drive.

Cc: Chao Zhang <chao.b.zhang@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Maggie Chu <maggie.chu@intel.com>
Reviewed-by: Eric Dong <eric.dong@intel.com>

SecurityPkg/Tcg/Opal/OpalPassword/OpalHiiCallbacks.c

@@ -2,7 +2,7 @@
   Callbacks required by the HII of the Opal UEFI Driver to help display
   Opal device information.
 
-Copyright (c) 2016 - 2018, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2016 - 2019, Intel Corporation. All rights reserved.<BR>
 This program and the accompanying materials
 are licensed and made available under the terms and conditions of the BSD License
 which accompanies this distribution.  The full text of the license may be found at
@@ -115,18 +115,4 @@ HiiDiskGetNameCB(
     return Ctx->NameZ;
   }
   return NULL;
-}
-
-/**
-  Returns the driver name.
-
-  @retval Returns the driver name.
-
-**/
-CHAR16*
-HiiGetDriverNameCB(
-  VOID
-  )
-{
-  return (CHAR16*)EFI_DRIVER_NAME_UNICODE;
-}
+}