Remove badges from Cargo.toml

Author: alexcrichton

Cargo.toml

@@ -16,10 +16,6 @@ readme = "README.md"
 categories = ["development-tools::build-utils"]
 exclude = ["/.travis.yml", "/appveyor.yml"]
 
-[badges]
-travis-ci = { repository = "alexcrichton/cc-rs" }
-appveyor = { repository = "alexcrichton/cc-rs" }
-
 [dependencies]
 rayon = { version = "1.0", optional = true }