Merge pull request #9288 from pblottiere/fix_doc

Update doc

Author: pblottiere

python/core/auto_generated/qgslegendsettings.sip.in

@@ -205,7 +205,7 @@ Returns the factor of map units per pixel for symbols with size given in map uni
 
     void setMapUnitsPerPixel( double mapUnitsPerPixel );
 %Docstring
-Sets the the mmPerMapUnit calculated by ``mapUnitsPerPixel`` mostly taken from the map settings.
+Sets the mmPerMapUnit calculated by ``mapUnitsPerPixel`` mostly taken from the map settings.
 
 .. seealso:: :py:func:`mapUnitsPerPixel`
 

src/core/qgslegendsettings.h

@@ -186,7 +186,7 @@ class CORE_EXPORT QgsLegendSettings
     double mapUnitsPerPixel() const;
 
     /**
-     * Sets the the mmPerMapUnit calculated by \a mapUnitsPerPixel mostly taken from the map settings.
+     * Sets the mmPerMapUnit calculated by \a mapUnitsPerPixel mostly taken from the map settings.
      * \see mapUnitsPerPixel()
      * \since QGIS 3.8
      */