Move 'clean' command multi back to where it was supposed to be

bench

@@ -142,23 +142,6 @@ multi MAIN ('build', *@components) {
     }
 }
 
-#= Clean up build trees in components/, keeping bare clones by default
-multi MAIN ('clean', *@components) {
-    unless $COMPONENTS_DIR.IO.d {
-        say "No 'components' tree exists, so there is nothing to clean.";
-        exit;
-    }
-
-    for explode-components(@components) -> $comp {
-        my $name = $comp<info><name>;
-        say "==> $name";
-
-        for $comp<checkouts>.list -> $checkout {
-            rmtree "$COMPONENTS_DIR/$name/$checkout";
-        }
-    }
-}
-
 #= Run timing benchmarks on built components
 multi MAIN ('time', *@components) {
     needs-setup('benchmark Perls');
@@ -179,6 +162,23 @@ multi MAIN ('time', *@components) {
     }
 }
 
+#= Clean up build trees in components/, keeping bare clones by default
+multi MAIN ('clean', *@components) {
+    unless $COMPONENTS_DIR.IO.d {
+        say "No 'components' tree exists, so there is nothing to clean.";
+        exit;
+    }
+
+    for explode-components(@components) -> $comp {
+        my $name = $comp<info><name>;
+        say "==> $name";
+
+        for $comp<checkouts>.list -> $checkout {
+            rmtree "$COMPONENTS_DIR/$name/$checkout";
+        }
+    }
+}
+
 #= Remove *everything* not part of the core benchmark tree
 multi MAIN ('realclean', Bool :$force) {
     unless $force {