Remove unused dependencies from datadog-trace-agent

Author: kathiehuang

Cargo.lock

@@ -33,8 +33,6 @@ libdd-trace-obfuscation = { git = "https://github.com/DataDog/libdatadog", rev =
 datadog-fips = { path = "../datadog-fips" }
 reqwest = { version = "0.12.23", features = ["json", "http2"], default-features = false }
 bytes = "1.10.1"
-dogstatsd = { path = "../dogstatsd", default-features = true }
-num_cpus = "1.16"
 
 [dev-dependencies]
 rmp-serde = "1.1.1"