Revert "coverity#1242942 Use of untrusted scalar value"

This reverts commit 093b3d30.

it didn't help one bit to get coverity to see the bounds check

Change-Id: Ibf01c7dea2b220290511871c2a650051295d389d

sc/inc/table.hxx

@@ -1169,15 +1169,6 @@ private:
         SCROW mnUBound;
     };
 
-    bool ValidCol(SCCOL nCol) const
-    {
-        return nCol >= 0 && static_cast<size_t>(nCol) < SAL_N_ELEMENTS(aCol);
-    }
-
-    bool ValidColRow(SCCOL nCol, SCROW nRow) const
-    {
-        return ValidCol(nCol) && ValidRow(nRow);
-    }
 };
 
 #endif