Removed the usage of the old values for new PP tool.

Automatic ones are used, as everywhere. This didn't make sense when using graph tools, e.g. zoom.

Refs #5116

Code/Mantid/MantidPlot/src/Mantid/PeakPickerTool.cpp

@@ -97,21 +97,13 @@ m_width_set(true),m_width(0),m_addingPeak(false),m_resetting(false)
   if (m_fitPropertyBrowser->count() == 0 || (m_fitPropertyBrowser->count() == 1 && m_fitPropertyBrowser->isAutoBack()))
   {
     m_init = true;
-    // If part of custom interface (i.e muon analysis)
-    if (customInterface)
-    {
-      // Set the vertical lines to correspond to the StartX and EndX stated on the custom interface.
-      xMin(m_fitPropertyBrowser->startX());
-      xMax(m_fitPropertyBrowser->endX());
-    }
-    else // Do what was done before
-    {
-      QwtScaleMap xMap = d_graph->plotWidget()->canvasMap(QwtPlot::xBottom);
-      double s1 = xMap.s1(), s2 = xMap.s2();
-      double ds = fabs(s2-s1)*0.05; 
-      xMin(s1 + ds);
-      xMax(s2 - ds);
-    }   
+
+    QwtScaleMap xMap = d_graph->plotWidget()->canvasMap(QwtPlot::xBottom);
+    double s1 = xMap.s1(), s2 = xMap.s2();
+    double ds = fabs(s2-s1)*0.05; 
+    xMin(s1 + ds);
+    xMax(s2 - ds);
+
     m_changingXMin = false;
     m_changingXMax = false;
     m_fitPropertyBrowser->setStartX(xMin());