Re-enable MSVC warning 4702

fpdfsdk/fpdfxfa/fpdfxfa_page.cpp

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #include "fpdfsdk/include/fpdfxfa/fpdfxfa_page.h"
 
 #include "core/fpdfapi/fpdf_page/include/cpdf_page.h"
 #include "core/fpdfapi/fpdf_parser/include/cpdf_document.h"
@@ skipping 84 matching lines @@
     case DOCTYPE_PDF:
     case DOCTYPE_STATIC_XFA: {
       return LoadPDFPage();
     }
     case DOCTYPE_DYNAMIC_XFA: {
       return LoadXFAPageView();
     }
     default:
       return FALSE;
   }
-
-  return FALSE;
 }
 
 FX_BOOL CPDFXFA_Page::LoadPDFPage(CPDF_Dictionary* pageDict) {
   if (!m_pDocument || m_iPageIndex < 0 || !pageDict)
     return FALSE;
 
   if (m_pPDFPage)
     delete m_pPDFPage;
 
   m_pPDFPage = new CPDF_Page();
@@ skipping 124 matching lines @@
     case DOCTYPE_PDF:
     case DOCTYPE_STATIC_XFA: {
       if (m_pPDFPage) {
         m_pPDFPage->GetDisplayMatrix(matrix, xPos, yPos, xSize, ySize, iRotate);
       }
     } break;
     default:
       return;
   }
 }