Merge #461: Move cbor to dev-dependencies

74ec3ef Move cbor to dev-dependencies (Artem Vorotnikov)

Pull request description:

ACKs for top commit:
  apoelstra:
    ACK 74ec3ef

Tree-SHA512: 19228e31f994b4befa5b533ed1ddcac024e87d421b2d6bebc690886a8af87d3c0909e023a7a36f43cf50b8914ee79828f186b048fd5b38c151917abdcbf1f53b

Cargo.toml

@@ -54,7 +54,7 @@ bincode = "1.3.3"
 
 # cbor does not build on WASM, we use it in a single trivial test (an example of when
 # fixed-width-serde breaks down). Just run the test when on an x86_64 machine.
-[target.'cfg(target_arch = "x86_64")'.dependencies]
+[target.'cfg(target_arch = "x86_64")'.dev-dependencies]
 cbor = "0.4.1"
 
 [target.wasm32-unknown-unknown.dev-dependencies]