Remove alloc feature flag

Author: domenukk

url/Cargo.toml

@@ -32,8 +32,7 @@ serde = { version = "1.0", optional = true, features = ["derive"] }
 
 [features]
 default = ["std"]
-std = ["idna/std", "percent-encoding/std", "form_urlencoded/std", "alloc"]
-alloc = ["form_urlencoded/alloc", "idna/alloc", "percent-encoding/alloc"]
+std = ["idna/std", "percent-encoding/std", "form_urlencoded/std"]
 
 # Enable to use the #[debugger_visualizer] attribute. This feature requires Rust >= 1.71.
 debugger_visualizer = []

url/src/lib.rs

@@ -161,9 +161,6 @@ extern crate std;
 #[macro_use]
 extern crate alloc;
 
-#[cfg(not(feature = "alloc"))]
-compile_error!("the `alloc` feature must be enabled");
-
 #[cfg(feature = "serde")]
 extern crate serde;
 

url/tests/unit.rs

@@ -15,9 +15,6 @@ extern crate std;
 #[macro_use]
 extern crate alloc;
 
-#[cfg(not(feature = "alloc"))]
-compile_error!("the `alloc` feature must be enabled");
-
 use alloc::borrow::Cow;
 use alloc::borrow::ToOwned;
 use alloc::string::{String, ToString};