Drop range_contains feature

mati865 · mati865 · commit 664391c5f862 · 2019-03-18T12:54:10.000+01:00
diff --git a/clippy_lints/src/lib.rs b/clippy_lints/src/lib.rs
@@ -5,7 +5,6 @@
 #![feature(rustc_private)]
 #![feature(slice_patterns)]
 #![feature(stmt_expr_attributes)]
-#![feature(range_contains)]
 #![allow(clippy::missing_docs_in_private_items)]
 #![recursion_limit = "256"]
 #![warn(rust_2018_idioms, trivial_casts, trivial_numeric_casts)]
