Remove poor fudged test for RT#128595

The test tests for hanginess of the REPL, whereas the proper solution
to the ticket is to not start the REPL in the first place, making this
test bogus.

S19-command-line/repl.t

@@ -4,7 +4,7 @@ use lib <t/spec/packages>;
 use Test;
 use Test::Util;
 
-plan 10;
+plan 9;
 
 # Sanity check that the repl is working at all.
 my $cmd = $*DISTRO.is-win
@@ -78,16 +78,6 @@ is shell($cmd).exitcode, 42, 'exit(42) in executed REPL got run';
         '-I in REPL works';
 }
 
-# RT #128595
-{
-    #?rakudo.moar todo 'RT 128595'
-    #?rakudo.jvm skip 'Proc::Async NYI'
-    doesn't-hang \(:w, $*EXECUTABLE, '-M', "SomeNonExistentMod"),
-        :in("say 'output works'\n"),
-        :out(/'output works'/),
-    'REPL with -M with non-existent module';
-}
-
 # RT #127933
 {
     my $code = [~]  'my ( int8 $a,  int16 $b,  int32 $c,  int64 $d,',