svx: remove duplicate "Kuerzen" function

Change-Id: I319ba12684398bcdfcd8d8ede1648e1d213e75a7

include/svx/svdtrans.hxx

@@ -249,12 +249,6 @@ SVX_DLLPUBLIC void OrthoDistance4(const Point& rPt0, Point& rPt, bool bBigOrtho)
 // Calculation and intermediate values are in BigInt
 SVX_DLLPUBLIC long BigMulDiv(long nVal, long nMul, long nDiv);
 
-// Lossy cancellation of a fraction
-// nDigits specifies, how many significant digits the numerator
-// and denominator should at least be retained
-void Kuerzen(Fraction& rF, unsigned nDigits);
-
-
 class FrPair {
     Fraction aX;
     Fraction aY;

svx/source/svdraw/svddrgmt.cxx

@@ -2422,7 +2422,7 @@ void SdrDragShear::MoveSdrDrag(const Point& rPnt)
             bResize=true;
             double nCos=cos(nTmpAngle*nPi180);
             aNeuFact=nCos;
-            Kuerzen(aFact,10); // three decimals should be enough
+            aFact.ReduceInaccurate(10); // three decimals should be enough
         }
 
         if (nNewAngle>8900)

svx/source/svdraw/svdoole2.cxx

@@ -2225,8 +2225,8 @@ bool SdrOle2Obj::CalculateNewScaling( Fraction& aScaleWidth, Fraction& aScaleHei
     aScaleHeight = Fraction(aSize.Height(), aObjAreaSize.Height() );
 
     // reduce to 10 binary digits
-    Kuerzen(aScaleHeight, 10);
-    Kuerzen(aScaleWidth,  10);
+    aScaleHeight.ReduceInaccurate(10);
+    aScaleWidth.ReduceInaccurate(10);
 
     return true;
 }

svx/source/svdraw/svdtrans.cxx

@@ -584,39 +584,6 @@ long BigMulDiv(long nVal, long nMul, long nDiv)
     return 0x7fffffff;
 }
 
-void Kuerzen(Fraction& rF, unsigned nDigits)
-{
-    sal_Int32 nMul=rF.GetNumerator();
-    sal_Int32 nDiv=rF.GetDenominator();
-    bool bNeg = false;
-    if (nMul<0) { nMul=-nMul; bNeg=!bNeg; }
-    if (nDiv<0) { nDiv=-nDiv; bNeg=!bNeg; }
-    if (nMul==0 || nDiv==0) return;
-    sal_uInt32 a;
-    a=sal_uInt32(nMul); unsigned nMulZ=0; // count leading zeros
-    while (a<0x00800000) { nMulZ+=8; a<<=8; }
-    while (a<0x80000000) { nMulZ++; a<<=1; }
-    a=sal_uInt32(nDiv); unsigned nDivZ=0; // count leading zeros
-    while (a<0x00800000) { nDivZ+=8; a<<=8; }
-    while (a<0x80000000) { nDivZ++; a<<=1; }
-    // count the number of digits
-    int nMulDigits=32-nMulZ;
-    int nDivDigits=32-nDivZ;
-    // count how many decimal places can be removed
-    int nMulWeg=nMulDigits-nDigits; if (nMulWeg<0) nMulWeg=0;
-    int nDivWeg=nDivDigits-nDigits; if (nDivWeg<0) nDivWeg=0;
-    int nWeg=std::min(nMulWeg,nDivWeg);
-    nMul>>=nWeg;
-    nDiv>>=nWeg;
-    if (nMul==0 || nDiv==0) {
-        DBG_WARNING("Math error after canceling decimal places.");
-        return;
-    }
-    if (bNeg) nMul=-nMul;
-    rF=Fraction(nMul,nDiv);
-}
-
-
 // How many eU units fit into a mm, respectively an inch?
 // Or: How many mm, respectively inches, are there in an eU (and then give me the inverse)