diff --git a/src/build.rs b/src/build.rs
deleted file mode 100644
index 4b05b5c..0000000
--- a/src/build.rs
+++ /dev/null
@@ -1,12 +0,0 @@
-use rustc_version::{version_meta, Channel};
-
-fn main() {
-    // Set cfg flags depending on release channel
-    let channel = match version_meta().unwrap().channel {
-        Channel::Stable => "CHANNEL_STABLE",
-        Channel::Beta => "CHANNEL_BETA",
-        Channel::Nightly => "CHANNEL_NIGHTLY",
-        Channel::Dev => "CHANNEL_DEV",
-    };
-    println!("cargo:rustc-cfg={}", channel)
-}