rand: respect column limit

Author: InKryption

scripts/style.py

@@ -167,7 +167,6 @@ def unused_imports(args, files_to_check):
     "src/ledger/shred_inserter/working_state.zig",
     "src/ledger/shred.zig",
     "src/ledger/test_shreds.zig",
-    "src/rand/rand.zig",
     "src/rpc/client.zig",
     "src/rpc/request.zig",
     "src/rpc/test_serialize.zig",