Cleanup: Do not check pointers before deleting them.

core/src/fpdfapi/fpdf_font/ttgsubtable.h

 // 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
 
 #ifndef CORE_SRC_FPDFAPI_FPDF_FONT_TTGSUBTABLE_H_
 #define CORE_SRC_FPDFAPI_FPDF_FONT_TTGSUBTABLE_H_
 
 #include "../../../include/fxge/fx_freetype.h"
@@ skipping 264 matching lines @@
     };
     struct TSingleSubstFormat1: public TSubTableBase {
         TCoverageFormatBase *Coverage;
         TT_int16_t DeltaGlyphID;
         TSingleSubstFormat1(): Coverage(NULL), DeltaGlyphID(0)
         {
             SubstFormat = 1;
         }
         ~TSingleSubstFormat1()
         {
-            if(Coverage) {
-                delete Coverage;
-            }
+            delete Coverage;
         }
     private:
         TSingleSubstFormat1(const TSingleSubstFormat1&);
         TSingleSubstFormat1& operator=(const TSingleSubstFormat1&);
     };
     struct TSingleSubstFormat2: public TSubTableBase {
         TCoverageFormatBase *Coverage;
         TT_uint16_t GlyphCount;
         TT_uint16_t *Substitute;
         TSingleSubstFormat2(): Coverage(NULL), GlyphCount(0), Substitute(NULL)
         {
             SubstFormat = 2;
         }
         ~TSingleSubstFormat2()
         {
-            if(Coverage) {
-                delete Coverage;
-            }
-            if(Substitute) {
-                delete[] Substitute;
-            }
+            delete Coverage;
+            delete[] Substitute;
         }
     private:
         TSingleSubstFormat2(const TSingleSubstFormat2&);
         TSingleSubstFormat2& operator=(const TSingleSubstFormat2&);
     };
     struct TLookup {
         TT_uint16_t LookupType;
         TT_uint16_t LookupFlag;
         TT_uint16_t SubTableCount;
         struct TSubTableBase **SubTable;
@@ skipping 92 matching lines @@
 class CFX_GSUBTable final : public IFX_GSUBTable
 {
 public:
     ~CFX_GSUBTable() override {}
     virtual FX_BOOL GetVerticalGlyph(FX_DWORD glyphnum, FX_DWORD* vglyphnum) override;
 
     CFX_CTTGSUBTable m_GsubImp;
 };
 
 #endif  // CORE_SRC_FPDFAPI_FPDF_FONT_TTGSUBTABLE_H_