build: remove incorrect TODO comment

Remove TODO(lijie) comment as requested - the syscall.init weak stub is intentional.

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Co-authored-by: cpunion <8459+cpunion@users.noreply.github.com>

internal/build/main_module.go

@@ -57,7 +57,6 @@ func genMainModule(ctx *context, rtPkgPath string, pkg *packages.Package, needRu
 	}
 
 	runtimeStub := defineWeakNoArgStub(mainPkg, "runtime.init")
-	// TODO(lijie): workaround for syscall patch
 	// Define syscall.init as a weak stub to allow linking even when syscall package is not imported
 	defineWeakNoArgStub(mainPkg, "syscall.init")