Revert "Invoke `backtrace-rs` buildscript in `std` buildscript"

This reverts commit 93677276bc495e78f74536385a16201d465fd523
because it caused issues for projects building the standard
library with non-cargo build systems.

1 files changed, 0 insertions, 8 deletions

diff --git a/library/std/build.rs b/library/std/build.rs
index 49354d5a58c..046ac488b1f 100644
--- a/library/std/build.rs
+++ b/library/std/build.rs
@@ -1,11 +1,5 @@
 use std::env;
 
-// backtrace-rs requires a feature check on Android targets, so
-// we need to run its build.rs as well.
-#[allow(unused_extern_crates)]
-#[path = "../backtrace/build.rs"]
-mod backtrace_build_rs;
-
 fn main() {
     println!("cargo:rerun-if-changed=build.rs");
     let target = env::var("TARGET").expect("TARGET was not set");
@@ -65,6 +59,4 @@ fn main() {
     }
     println!("cargo:rustc-env=STD_ENV_ARCH={}", env::var("CARGO_CFG_TARGET_ARCH").unwrap());
     println!("cargo:rustc-cfg=backtrace_in_libstd");
-
-    backtrace_build_rs::main();
 }