Remove rust_tenacious

We don't use it anymore since #11872.
servo · bors-servo · Aug 13, 2016 · Aug 13, 2016 · Aug 13, 2016 · Aug 13, 2016
commit f12fad7953e67970733f7310224aa332e3165c0e
diff --git a/components/plugins/Cargo.toml b/components/plugins/Cargo.toml
@@ -10,9 +10,6 @@ name = "plugins"
 path = "lib.rs"
 plugin = true
 
-[dependencies]
-tenacious = "0.2.0"
-
 [dependencies.clippy_lints]
 version = "0.0.77"
 optional = true

diff --git a/components/plugins/lib.rs b/components/plugins/lib.rs
@@ -25,7 +25,6 @@ extern crate rustc_plugin;
 #[macro_use]
 extern crate syntax;
 extern crate syntax_ext;
-extern crate tenacious;
 
 use rustc_plugin::Registry;
 use syntax::ext::base::*;
@@ -53,7 +52,6 @@ pub fn plugin_registrar(reg: &mut Registry) {
     reg.register_late_lint_pass(box lints::inheritance_integrity::InheritancePass);
     reg.register_late_lint_pass(box lints::transmute_type::TransmutePass);
     reg.register_early_lint_pass(box lints::ban::BanPass);
-    reg.register_late_lint_pass(box tenacious::TenaciousPass);
     reg.register_attribute("must_root".to_string(), Whitelisted);
     reg.register_attribute("servo_lang".to_string(), Whitelisted);
     reg.register_attribute("allow_unrooted_interior".to_string(), Whitelisted);

diff --git a/components/servo/Cargo.lock b/components/servo/Cargo.lock
diff --git a/ports/cef/Cargo.lock b/ports/cef/Cargo.lock