Removed the Point::wkt() and Point::dump_perl() methods.

Added to_string() for the basis Eigen vector types.

lib/Slic3r/Point.pm

@@ -7,11 +7,6 @@ sub new_scale {
     return $class->new(map Slic3r::Geometry::scale($_), @_);
 }
 
-sub dump_perl {
-    my $self = shift;
-    return sprintf "[%s,%s]", @$self;
-}
-
 package Slic3r::Pointf;
 use strict;
 use warnings;