Remove unused libsplinter dev-dep
This change removes the unused serial_test dependency from libsplinter.
@@ -71,7 +71,6 @@ uuid = { version = "0.8", features = ["v4", "v5"] }
[dev-dependencies]
reqwest = { version = "0.11", features = ["blocking", "json"] }
-serial_test = "0.3"
tempdir = "0.3"
[build-dependencies]
