COMP: Fix unused-function warning in qMRMLPlotSeriesPropertiesWidget.cxx

This commit fixes the following warnings:

/path/to/Slicer/Modules/Loadable/Plots/Widgets/qMRMLPlotSeriesPropertiesWidget.cxx:57:13: warning: ‘std::__cxx11::string {anonymous}::DoubleToString(double)’ defined but not used [-Wunused-function]
 std::string DoubleToString(double Value)
             ^

git-svn-id: http://svn.slicer.org/Slicer4/trunk@26942 3bd1e089-480b-0410-8dfb-8563597acbee

Author: jcfr

Modules/Loadable/Plots/Widgets/qMRMLPlotSeriesPropertiesWidget.cxx

@@ -41,26 +41,6 @@
 // stream includes
 #include <sstream>
 
-namespace
-{
-//----------------------------------------------------------------------------
-template <typename T> std::string NumberToString(T V)
-{
-  std::string stringValue;
-  std::stringstream strstream;
-  strstream << V;
-  strstream >> stringValue;
-  return stringValue;
-}
-
-//----------------------------------------------------------------------------
-std::string DoubleToString(double Value)
-{
-  return NumberToString<double>(Value);
-}
-
-}// end namespace
-
 //--------------------------------------------------------------------------
 // qMRMLPlotSeriesPropertiesWidgetPrivate methods