chore: remove debug phase-timing prints from mbrainz-bench

ober

cb2aa44dadd406ffa3053242c5c8bd50d8524f9c

diff --git a/benchmarks/mbrainz-bench.ss b/benchmarks/mbrainz-bench.ss
index 4e206d4..a57f8c4 100644
--- a/benchmarks/mbrainz-bench.ss
+++ b/benchmarks/mbrainz-bench.ss
@@ -144,8 +144,7 @@
     (transact! conn (mbrainz-schema-ops))
 
     ;; ---- Phase 1: artists — collect eids for later reference ----
-    (let ([artist-eids '()]
-          [t-p1-start (now-ms)])
+    (let ([artist-eids '()])
       (let loop ([i 0] [batch '()])
         (cond
           [(= i num-artists)
@@ -164,10 +163,8 @@
                    (loop (+ i 1) '()))
                  (loop (+ i 1) b)))]))
 
-      (displayln "  Phase 1 (artists): " (inexact->exact (round (- (now-ms) t-p1-start))) " ms")
       ;; ---- Phase 2: releases — flat pass, batch by batch ----
-      (let ([total-releases 0]
-            [t-p2-start (now-ms)])
+      (let ([total-releases 0])
         (let loop ([eids artist-eids] [batch '()])
           (cond
             [(null? eids)
@@ -192,10 +189,8 @@
                      (loop (cdr eids) '()))
                    (loop (cdr eids) b)))]))
 
-        (displayln "  Phase 2 (releases): " (inexact->exact (round (- (now-ms) t-p2-start))) " ms")
         ;; ---- Phase 3: tracks — flat pass, batch by batch ----
-        (let ([total-tracks 0]
-              [t-p3-start (now-ms)])
+        (let ([total-tracks 0])
           (let loop ([eids artist-eids] [batch '()])
             (cond
               [(null? eids)
@@ -218,7 +213,6 @@
                      (loop (cdr eids) b)))]))
 
 
-          (displayln "  Phase 3 (tracks): " (inexact->exact (round (- (now-ms) t-p3-start))) " ms")
           (list 'artists (length artist-eids)
                 'releases total-releases
                 'tracks total-tracks))))))