perl: remove useless patch

The Perl infrastructure uses a host version of Module-Build
(see previous commit "host-perl-module-build: new package").
The target version is never used, so no need to patch it.

Signed-off-by: Francois Perrad <francois.perrad@gadz.org>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/perl/perl-fix-Module-Build.patch

@@ -1,16 +0,0 @@
-
-Signed-off-by: Francois Perrad <francois.perrad@gadz.org>
-
-Index: b/cpan/Module-Build/lib/Module/Build/Base.pm
-===================================================================
---- a/cpan/Module-Build/lib/Module/Build/Base.pm
-+++ b/cpan/Module-Build/lib/Module/Build/Base.pm
-@@ -460,7 +460,7 @@
-   my $proto = shift;
-   my $c     = ref($proto) ? $proto->{config} : 'Module::Build::Config';
- 
--  my $perl  = $^X;
-+  my $perl  = $ENV{RUN_PERL} || $^X;
-   my $perl_basename = File::Basename::basename($perl);
- 
-   my @potential_perls;