Revert "fdo#88475 BrowseBox/grid: reposition data cursor to current row after paint"

(and its later fixup)

This reverts commits
 e8a68c1f
 e60b5899

It was a work-around for the real underlying issue, which was that the
result of dbaccess::ResultSet::isFirst() et al were clobbered by moves
made by its clones.

The BrowseBox has two different cursors:
1) One for data to edit (which is kept on the current/active row)
2) One for data to *paint*
The second is a clone of the first.

The real underlying issue is fixed by:

  commit d7c9a1d9
  Author: Lionel Elie Mamane <lionel@mamane.lu>
  Date:   Thu Jan 22 10:49:42 2015 +0100

      fdo#88475 RowSetBase: reposition cache before interrogating it

      Change-Id: I28d62673fdf10ee6507d38bb7c79c08e4b40902f

include/sal/log-areas.dox

@@ -298,7 +298,6 @@ certain functionality.
 @section svtools
 
 @li @c svtools
-@li @c svtools.brwbox
 @li @c svtools.config
 @li @c svtools.contnr
 @li @c svtools.control

svtools/source/brwbox/brwbox2.cxx

@@ -888,7 +888,6 @@ void BrowseBox::ImplPaintData(OutputDevice& _rOut, const Rectangle& _rRect, bool
     Color aDelimiterLineColor( ::svtools::ColorConfig().GetColorValue( ::svtools::CALCGRID ).nColor );
 
     // redraw the invalid fields
-    bool paint_seeked(false);
     for ( sal_uLong nRelRow = nRelTopRow;
           nRelRow <= nRelBottomRow && (sal_uLong)nTopRow+nRelRow < (sal_uLong)nRowCount;
           ++nRelRow, aPos.Y() += nDataRowHeigt )
@@ -901,7 +900,6 @@ void BrowseBox::ImplPaintData(OutputDevice& _rOut, const Rectangle& _rRect, bool
 
         // prepare row
         sal_uLong nRow = nTopRow+nRelRow;
-        paint_seeked = true;
         if ( !SeekRow( nRow) ) {
             OSL_FAIL("BrowseBox::ImplPaintData: SeekRow failed");
         }
@@ -1034,11 +1032,6 @@ void BrowseBox::ImplPaintData(OutputDevice& _rOut, const Rectangle& _rRect, bool
         }
     }
 
-    if (paint_seeked && !SeekRow(nCurRow))
-    {
-        SAL_WARN("svtools.brwbox", "BrowseBox::ImplPaintData could not seek back to current row after paint");
-    }
-
     if (aPos.Y() > aOverallAreaBRPos.Y() + 1)
         aPos.Y() = aOverallAreaBRPos.Y() + 1;
         // needed for some of the following drawing