Cleanup: Do not check pointers before deleting them.

core/src/fxcodec/jbig2/JBig2_PatternDict.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 "JBig2_PatternDict.h"
 CJBig2_PatternDict::CJBig2_PatternDict()
 {
     NUMPATS = 0;
     HDPATS = NULL;
 }
 
 CJBig2_PatternDict::~CJBig2_PatternDict()
 {
     if(HDPATS) {
         for(FX_DWORD i = 0; i < NUMPATS; i++) {
-            if(HDPATS[i]) {
-                delete HDPATS[i];
-            }
+            delete HDPATS[i];
         }
         m_pModule->JBig2_Free(HDPATS);
     }
 }