Remove some unused variables.

BUG=chromium:760070

Change-Id: Icb2e46da86b6b7e71dae309a015ae1c5301fc931
Reviewed-on: https://pdfium-review.googlesource.com/14230
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
diff --git a/xfa/fgas/layout/cfx_txtbreak.cpp b/xfa/fgas/layout/cfx_txtbreak.cpp
index c30b4a1..9fe5a43 100644
--- a/xfa/fgas/layout/cfx_txtbreak.cpp
+++ b/xfa/fgas/layout/cfx_txtbreak.cpp
@@ -665,7 +665,6 @@
   float fX = rtText.left;
   float fY;
   float fCharWidth;
-  float fCharHeight;
   int32_t iHorScale = pTxtRun->iHorizontalScale;
   int32_t iVerScale = pTxtRun->iVerticalScale;
   bool bSkipSpace = pTxtRun->bSkipSpace;
@@ -835,10 +834,7 @@
         pCharPos->m_FontCharWidth = iCharWidth;
       }
 
-      int32_t iCharHeight = 1000;
-
       fCharWidth = fFontSize * iCharWidth / 1000.0f;
-      fCharHeight = fFontSize * iCharHeight / 1000.0f;
       if (bRTLPiece && chartype != FX_CHARTYPE_Combination)
         fX -= fCharWidth;