Update features to reflect merge of alloc and collections crates.

Cargo.toml

@@ -13,7 +13,7 @@ license = "0BSD"
 
 [dependencies]
 byteorder = { version = "1.0", default-features = false }
-managed = { version = "0.3.0", default-features = false }
+managed = { version = "0.4.0", default-features = false }
 log = { version = "0.3", default-features = false, optional = true }
 libc = { version = "0.2.18", optional = true }
 
@@ -25,7 +25,6 @@ getopts = "0.2"
 [features]
 std = ["managed/std"]
 alloc = ["managed/alloc"]
-collections = ["alloc", "managed/collections"]
 verbose = []
 raw_socket = ["libc"]
 tap_interface = ["libc"]

README.md

@@ -104,12 +104,7 @@ These features are enabled by default.
 ### Feature `alloc`
 
 The `alloc` feature enables use of objects owned by the networking stack through a dependency
-on `alloc::boxed::Box`. This only works on nightly rustc.
-
-### Feature `collections`
-
-The `collections` feature enables use of slices owned by the networking stack through a dependency
-on `collections::vec::Vec`. This only works on nightly rustc.
+on collections from the `alloc` crate. This only works on nightly rustc.
 
 ### Feature `log`