Remove unneeded cfg-target-has-atomic feature

Author: taiki-e

futures-channel/Cargo.toml

@@ -17,11 +17,6 @@ std = ["alloc", "futures-core/std"]
 alloc = ["futures-core/alloc"]
 sink = ["futures-sink"]
 
-# These features are no longer used.
-# TODO: remove in the next major version.
-unstable = []
-cfg-target-has-atomic = []
-
 [dependencies]
 futures-core = { path = "../futures-core", version = "=1.0.0-alpha.0", default-features = false }
 futures-sink = { path = "../futures-sink", version = "=0.4.0-alpha.0", default-features = false, optional = true }

futures-core/Cargo.toml

@@ -16,11 +16,6 @@ default = ["std"]
 std = ["alloc"]
 alloc = []
 
-# These features are no longer used.
-# TODO: remove in the next major version.
-unstable = []
-cfg-target-has-atomic = []
-
 [dependencies]
 
 [dev-dependencies]

futures-task/Cargo.toml

@@ -16,11 +16,6 @@ default = ["std"]
 std = ["alloc"]
 alloc = []
 
-# These features are no longer used.
-# TODO: remove in the next major version.
-unstable = []
-cfg-target-has-atomic = []
-
 [dependencies]
 
 [dev-dependencies]

futures-util/Cargo.toml

@@ -26,15 +26,11 @@ channel = ["std", "futures-channel"]
 # Unstable features
 # These features are outside of the normal semver guarantees and require the
 # `unstable` feature as an explicit opt-in to unstable API.
-unstable = ["futures-core/unstable", "futures-task/unstable"]
+unstable = []
 bilock = []
 read-initializer = ["io", "futures-io/read-initializer", "futures-io/unstable"]
 write-all-vectored = ["io"]
 
-# These features are no longer used.
-# TODO: remove in the next major version.
-cfg-target-has-atomic = []
-
 [build-dependencies]
 autocfg = "1"
 

futures/Cargo.toml

@@ -46,15 +46,11 @@ thread-pool = ["executor", "futures-executor/thread-pool"]
 # Unstable features
 # These features are outside of the normal semver guarantees and require the
 # `unstable` feature as an explicit opt-in to unstable API.
-unstable = ["futures-core/unstable", "futures-task/unstable", "futures-channel/unstable", "futures-io/unstable", "futures-util/unstable"]
+unstable = ["futures-io/unstable", "futures-util/unstable"]
 bilock = ["futures-util/bilock"]
 read-initializer = ["futures-io/read-initializer", "futures-util/read-initializer"]
 write-all-vectored = ["futures-util/write-all-vectored"]
 
-# These features are no longer used.
-# TODO: remove in the next major version.
-cfg-target-has-atomic = []
-
 [package.metadata.docs.rs]
 all-features = true
 rustdoc-args = ["--cfg", "docsrs"]