Cleanup various IFX_ text interfaces.

xfa/fee/fx_wordbreak/fx_wordbreak_impl.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 "xfa/fee/fx_wordbreak/fx_wordbreak_impl.h"
 
 FX_WordBreakProp FX_GetWordBreakProperty(FX_WCHAR wcCodePoint) {
   uint32_t dwProperty =
@@ skipping 215 matching lines @@
           return TRUE;
         }
       }
     }
     ePreType = eCurType;
     eCurType = eNextType;
     bFirst = FALSE;
   } while (!pIter->IsEOF(!bPrev));
   return TRUE;
 }
-IFX_WordBreak* FX_WordBreak_Create() {
-  return new CFX_WordBreak;
-}