Remove travis from readme and cargo config

Cargo.toml

@@ -12,7 +12,6 @@ license       = "MIT/Apache-2.0"
 edition       = "2018"
 
 [badges]
-travis-ci = { repository = "thijsc/mongo-rust-driver" }
 is-it-maintained-issue-resolution = { repository = "thijsc/mongo-rust-driver" }
 is-it-maintained-open-issues = { repository = "thijsc/mongo-rust-driver" }
 

README.md

@@ -1,6 +1,5 @@
 # Mongo Rust Driver
 
-[![Build Status](https://travis-ci.org/thijsc/mongo-rust-driver.svg)](https://travis-ci.org/thijsc/mongo-rust-driver)
 [![Crate](http://meritbadge.herokuapp.com/mongo_driver)](https://crates.io/crates/mongo_driver)
 
 Mongo Rust driver built on top of the [Mongo C driver](https://github.com/mongodb/mongo-c-driver).