Cleanup: Do not check pointers before deleting them.

core/src/fxcodec/jbig2/JBig2_SymbolDict.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_SymbolDict.h"
 CJBig2_SymbolDict::CJBig2_SymbolDict()
 {
     SDNUMEXSYMS = 0;
@@ skipping 23 matching lines @@
             dst->SDEXSYMS[i] = NULL;
         }
     }
     return dst;
 }
 
 CJBig2_SymbolDict::~CJBig2_SymbolDict()
 {
     if(SDEXSYMS) {
         for(FX_DWORD i = 0; i < SDNUMEXSYMS; i++) {
-            if(SDEXSYMS[i]) {
-                delete SDEXSYMS[i];
-            }
+            delete SDEXSYMS[i];
         }
         m_pModule->JBig2_Free(SDEXSYMS);
     }
     if(m_bContextRetained) {
         if(m_gbContext) {
             m_pModule->JBig2_Free(m_gbContext);
         }
         if(m_grContext) {
             m_pModule->JBig2_Free(m_grContext);
         }
     }
 }