remove gates

Author: Kivooeo

library/alloc/src/collections/btree/map/entry.rs

@@ -275,7 +275,6 @@ impl<'a, K: Ord, V, A: Allocator + Clone> Entry<'a, K, V, A> {
     /// # Examples
     ///
     /// ```
-    /// #![feature(btree_entry_insert)]
     /// use std::collections::BTreeMap;
     ///
     /// let mut map: BTreeMap<&str, String> = BTreeMap::new();
@@ -284,7 +283,7 @@ impl<'a, K: Ord, V, A: Allocator + Clone> Entry<'a, K, V, A> {
     /// assert_eq!(entry.key(), &"poneyland");
     /// ```
     #[inline]
-    #[unstable(feature = "btree_entry_insert", issue = "65225")]
+    #[stable(feature = "btree_entry_insert", since = "CURRENT_RUSTC_VERSION")]
     pub fn insert_entry(self, value: V) -> OccupiedEntry<'a, K, V, A> {
         match self {
             Occupied(mut entry) => {
@@ -383,7 +382,6 @@ impl<'a, K: Ord, V, A: Allocator + Clone> VacantEntry<'a, K, V, A> {
     /// # Examples
     ///
     /// ```
-    /// #![feature(btree_entry_insert)]
     /// use std::collections::BTreeMap;
     /// use std::collections::btree_map::Entry;
     ///
@@ -395,7 +393,7 @@ impl<'a, K: Ord, V, A: Allocator + Clone> VacantEntry<'a, K, V, A> {
     /// }
     /// assert_eq!(map["poneyland"], 37);
     /// ```
-    #[unstable(feature = "btree_entry_insert", issue = "65225")]
+    #[stable(feature = "btree_entry_insert", since = "CURRENT_RUSTC_VERSION")]
     pub fn insert_entry(mut self, value: V) -> OccupiedEntry<'a, K, V, A> {
         let handle = match self.handle {
             None => {