Get rid of most instance of 'foo != NULL'

fpdfsdk/src/formfiller/FFL_CBA_Fontmap.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/formfiller/FFL_CBA_Fontmap.h"
 #include "fpdfsdk/include/formfiller/FormFiller.h"
 
 CBA_FontMap::CBA_FontMap(CPDFSDK_Annot* pAnnot,
                          IFX_SystemHandler* pSystemHandler)
     : CPWL_FontMap(pSystemHandler),
       m_pDocument(NULL),
       m_pAnnotDict(NULL),
       m_pDefaultFont(NULL),
       m_sAPType("N") {
-  ASSERT(pAnnot != NULL);
-
   CPDF_Page* pPage = pAnnot->GetPDFPage();
 
   m_pDocument = pPage->m_pDocument;
   m_pAnnotDict = pAnnot->GetPDFAnnot()->GetAnnotDict();
 }
 
 CBA_FontMap::CBA_FontMap(CPDF_Document* pDocument,
                          CPDF_Dictionary* pAnnotDict,
                          IFX_SystemHandler* pSystemHandler)
     : CPWL_FontMap(pSystemHandler),
@@ skipping 246 matching lines @@
 
   return pFontDict ? m_pDocument->LoadFont(pFontDict) : nullptr;
 }
 
 void CBA_FontMap::SetAPType(const CFX_ByteString& sAPType) {
   m_sAPType = sAPType;
 
   Reset();
   Initial();
 }