Remove --random-seed argument from V8Profile

In a typical deployment, multiple Fuzzilli instances will cooperate and
send crashing samples to a dedicated "master" instance. In such a
configuration, it doesn't make much sense for each instance to pick a
random --random-seed as all instances of such a "swarm" need to use the
same seed. As such, with this change we remove the argument from the
V8Profile. Instead, the user can pass a --random-seed argument via the
--additionalArguments and that way ensure that the same seed is used.

Sources/FuzzilliCli/Profiles/V8Profile.swift

@@ -462,12 +462,6 @@ let v8Profile = Profile(
         //
         // Future features that should sometimes be enabled.
         //
-        if probability(0.5) {
-            // A (fixed) random seed can make crashes (and the engine in general) more deterministic.
-            let seed = Int32.random(in: Int32.min...Int32.max)
-            args.append("--random-seed=\(seed)")
-        }
-
         if probability(0.25) {
             args.append("--minor-ms")
         }