DragonFlyBSD: use __errno_location now provided by the libc crate

This obviates the need for the C language shim for this variable,
which this commit removes.

1 files changed, 0 insertions, 9 deletions

diff --git a/build.rs b/build.rs
deleted file mode 100644
index c527748b..00000000
--- a/build.rs
+++ /dev/null
@@ -1,9 +0,0 @@
-#[cfg(target_os = "dragonfly")]
-fn main() {
-    cc::Build::new()
-        .file("src/errno_dragonfly.c")
-        .compile("liberrno_dragonfly.a");
-}
-
-#[cfg(not(target_os = "dragonfly"))]
-fn main() {}