refactor: remove unused dependencies

Author: wfxr

Cargo.lock

@@ -26,12 +26,14 @@ audio = ["rodio"]
 colored = "2.0"
 itertools = "0.10"
 regex = "1.4"
-rodio = { version = "0.13", optional = true }
 scraper = "0.12"
-serde = { version = "1.0", features = ["derive"] }
-serde_json = "1.0"
-structopt = { version = "0.3", features = ["wrap_help", "color"], default-features = false }
 url = "2.2"
+rodio = { version = "0.13", optional = true }
+
+[dependencies.structopt]
+version = "0.3"
+default-features = false
+features = ["wrap_help", "color"]
 
 [target.'cfg(not(target_env = "musl"))'.dependencies.isahc]
 version = "1.1"
@@ -42,9 +44,11 @@ version = "1.1"
 default-features = false
 features = ["text-decoding", "static-ssl"]
 
+[build-dependencies.structopt]
+version = "0.3"
+features = ["wrap_help"]
+default-features = false
+
 [profile.release]
 lto = true
 codegen-units = 1
-
-[build-dependencies]
-structopt = { version = "0.3", features = ["wrap_help"], default-features = false }