tdf#118825 refactor basegfx::utils::exportToSvgD with putCommandChar.

Move similar code fragments to a new function called putCommandChar.

Change-Id: I7cd0beaab29110d89c3a206d6929e5154c755c4c
Reviewed-on: https://gerrit.libreoffice.org/58846
Tested-by: Jenkins
Reviewed-by: Mark Hung <marklh9@gmail.com>

basegfx/source/inc/stringconversiontools.hxx

@@ -63,12 +63,6 @@ namespace basegfx
                                     double          fOldValue,
                                     bool            bUseRelativeCoordinates);
 
-        inline sal_Unicode getCommand(sal_Char cUpperCaseCommand,
-                                      sal_Char cLowerCaseCommand,
-                                      bool     bUseRelativeCoordinates)
-        {
-            return bUseRelativeCoordinates ? cLowerCaseCommand : cUpperCaseCommand;
-        }
     } // namespace internal
 } // namespace basegfx