Git: Remove unneeded painter state save/restore

The QPainter::drawPixmap call does not modify the painter state.

Change-Id: I1cbae43e6531c9e3d2ae2d3cd1c2d77ce23c4c52
Reviewed-by: Orgad Shaneh <orgads@gmail.com>

src/plugins/git/logchangedialog.cpp

@@ -291,9 +291,7 @@ void IconItemDelegate::paint(QPainter *painter, const QStyleOptionViewItem &opti
     QStyleOptionViewItem o = option;
     if (index.column() == 0 && hasIcon(index.row())) {
         const QSize size = option.decorationSize;
-        painter->save();
         painter->drawPixmap(o.rect.x(), o.rect.y(), m_icon.pixmap(size.width(), size.height()));
-        painter->restore();
         o.rect.setLeft(size.width());
     }
     QStyledItemDelegate::paint(painter, o, index);