Remove now-useless allow(unknown_lints)

Author: oli-obk

clippy_lints/src/lib.rs

@@ -15,7 +15,7 @@
 #![feature(slice_patterns)]
 #![feature(stmt_expr_attributes)]
 #![feature(range_contains)]
-#![allow(unknown_lints, clippy::shadow_reuse, clippy::missing_docs_in_private_items)]
+#![allow(clippy::shadow_reuse, clippy::missing_docs_in_private_items)]
 #![recursion_limit = "256"]
 #![feature(macro_at_most_once_rep)]
 

src/driver.rs

@@ -13,7 +13,7 @@
 #![feature(rustc_private)]
 
 #![feature(try_from)]
-#![allow(unknown_lints, clippy::missing_docs_in_private_items)]
+#![allow(clippy::missing_docs_in_private_items)]
 
 // FIXME: switch to something more ergonomic here, once available.
 // (currently there is no way to opt into sysroot crates w/o `extern crate`)

src/lib.rs

@@ -12,7 +12,6 @@
 #![feature(plugin_registrar)]
 #![feature(rustc_private)]
 
-#![allow(unknown_lints)]
 #![allow(clippy::missing_docs_in_private_items)]
 #![warn(rust_2018_idioms)]
 

src/main.rs

@@ -12,7 +12,7 @@
 #![feature(box_syntax)]
 #![feature(rustc_private)]
 
-#![allow(unknown_lints, clippy::missing_docs_in_private_items)]
+#![allow(clippy::missing_docs_in_private_items)]
 
 use rustc_tools_util::*;
 

tests/ui/eta.rs

@@ -10,7 +10,7 @@
 
 
 
-#![allow(unknown_lints, unused, clippy::no_effect, clippy::redundant_closure_call, clippy::many_single_char_names, clippy::needless_pass_by_value, clippy::option_map_unit_fn, clippy::trivially_copy_pass_by_ref)]
+#![allow(unused, clippy::no_effect, clippy::redundant_closure_call, clippy::many_single_char_names, clippy::needless_pass_by_value, clippy::option_map_unit_fn, clippy::trivially_copy_pass_by_ref)]
 #![warn(clippy::redundant_closure, clippy::needless_borrow)]
 
 fn main() {