Remove the experimental "paused" functionality

src/core/Supply.pm

@@ -18,19 +18,10 @@ my class Tap {
 my role Supply {
     has $!tappers_lock = Lock.new;
     has @!tappers;
-    has $!been_tapped;
-    has @!paused;
 
     method tap(Supply:D: &more = -> $ { }, :&done,:&quit={die $_},:&closing) {
         my $tap = Tap.new(:&more, :&done, :&quit, :&closing, :supply(self));
-        $!tappers_lock.protect({
-            @!tappers.push($tap);
-            if @!paused -> \todo {
-                $tap.more().($_) for todo;
-                @!paused = ();
-            }
-            $!been_tapped = True;
-        });
+        $!tappers_lock.protect({ @!tappers.push($tap) });
         $tap
     }
 
@@ -56,9 +47,6 @@ my role Supply {
         if self.tappers -> \tappers {
             .more().(msg) for tappers;
         }
-        elsif !$!been_tapped {
-            $!tappers_lock.protect({ @!paused.push: msg });
-        }
         Nil;
     }