[bindings perl] remove --as-needed from linker flags, it is not supported evrywhere

It can come back if we add proper checking of the support on the
platform, maybe we can leverage tests made by autoconf.

bindings/perl/Makefile.PL

@@ -14,5 +14,4 @@ WriteMakefile(
       ( AUTHOR         => 'Benjamin Dauvergne <bdauvergne@entrouvert.com>') : ()),
     LIBS              => [ "$LIBS" ],
     MAKEFILE          => 'Makefile.perl',
-    dynamic_lib       => { OTHERLDFLAGS => '-Wl,--as-needed' }
 );