Remove unused code from CFX_BreakLine

Change-Id: I5b1cdeb53fa791f557cde93074f75e8d18c49f17
Reviewed-on: https://pdfium-review.googlesource.com/22330
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
diff --git a/xfa/fgas/layout/cfx_breakline.cpp b/xfa/fgas/layout/cfx_breakline.cpp
index d3fce06..0788603 100644
--- a/xfa/fgas/layout/cfx_breakline.cpp
+++ b/xfa/fgas/layout/cfx_breakline.cpp
@@ -35,14 +35,6 @@
   return &m_LinePieces[index];
 }
 
-void CFX_BreakLine::GetString(WideString& wsStr) const {
-  int32_t iCount = pdfium::CollectionSize<int32_t>(m_LineChars);
-  wchar_t* pBuf = wsStr.GetBuffer(iCount);
-  for (int32_t i = 0; i < iCount; i++)
-    *pBuf++ = static_cast<wchar_t>(m_LineChars[i].char_code());
-  wsStr.ReleaseBuffer(iCount);
-}
-
 int32_t CFX_BreakLine::GetLineEnd() const {
   return m_iStart + m_iWidth;
 }
diff --git a/xfa/fgas/layout/cfx_breakline.h b/xfa/fgas/layout/cfx_breakline.h
index 8826976..0b83ee6 100644
--- a/xfa/fgas/layout/cfx_breakline.h
+++ b/xfa/fgas/layout/cfx_breakline.h
@@ -24,7 +24,6 @@
   int32_t CountPieces() const;
   const CFX_BreakPiece* GetPiece(int32_t index) const;
 
-  void GetString(WideString& wsStr) const;
   int32_t GetLineEnd() const;
 
   void Clear();