minor: remove unused source files (apache#1202)

Author: andygrove

native/Cargo.lock

@@ -52,10 +52,6 @@ serde = { version = "1", features = ["derive"] }
 lazy_static = "1.4.0"
 prost = "0.12.1"
 jni = "0.21"
-snap = "1.1"
-brotli = "3.3"
-flate2 = "1.0"
-lz4 = "1.24"
 zstd = "0.11"
 rand = { workspace = true}
 num = { workspace = true }