Remove bitrig support from rust

Author: hellow554

src/bootstrap/bootstrap.py

@@ -177,7 +177,6 @@ def default_build_triple():
     # The goal here is to come up with the same triple as LLVM would,
     # at least for the subset of platforms we're willing to target.
     ostype_mapper = {
-        'Bitrig': 'unknown-bitrig',
         'Darwin': 'apple-darwin',
         'DragonFly': 'unknown-dragonfly',
         'FreeBSD': 'unknown-freebsd',

src/build_helper/lib.rs

@@ -113,7 +113,7 @@ pub fn gnu_target(target: &str) -> &str {
 }
 
 pub fn make(host: &str) -> PathBuf {
-    if host.contains("bitrig") || host.contains("dragonfly") || host.contains("freebsd")
+    if host.contains("dragonfly") || host.contains("freebsd")
         || host.contains("netbsd") || host.contains("openbsd")
     {
         PathBuf::from("gmake")