[cleanup] wasm/asm-wasm-u32 not SLOW anymore

Since https://chromium-review.googlesource.com/c/v8/v8/+/1791632 sped it
up, there is no need to mark it as SLOW.

Bug: v8:7783
Change-Id: I24d1b2f1e56dff4c820d397288ab3ad7662ae06b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1800564Reviewed-by: Mythri Alle <mythria@chromium.org>
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63712}

test/mjsunit/mjsunit.status

@@ -518,9 +518,6 @@
   'json': [PASS, SLOW],
   'sealed-array-reduce': [PASS, SLOW],
   'try': [PASS, SLOW],
-
-  # Slow without pointer compression
-  'wasm/asm-wasm-u32': [PASS, ['not pointer_compression', SLOW]],
 }],  # 'arch == arm64 and simulator_run'
 
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