[maglev] Fix readability warning

Bug: v8:7700
Change-Id: Ifad20bcccea2b87cb2119dcbaa5f16bf2dba2f60
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3804666Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Auto-Submit: Victor Gomes <victorgomes@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Victor Gomes <victorgomes@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82174}

src/maglev/maglev-ir.h

@@ -2301,7 +2301,7 @@ class CheckedInternalizedString
 
   void AllocateVreg(MaglevVregAllocationState*);
   void GenerateCode(MaglevCodeGenState*, const ProcessingState&);
-  void PrintParams(std::ostream&, MaglevGraphLabeller*) const {};
+  void PrintParams(std::ostream&, MaglevGraphLabeller*) const {}
 };
 
 class LoadTaggedField : public FixedInputValueNodeT<1, LoadTaggedField> {