fix: remove cargo warnings

Author: LastLeaf

float-pigment-css-macro/Cargo.toml

@@ -27,6 +27,3 @@ rustc-hash = "1.1.0"
 
 [lints]
 workspace = true
-
-[profile.release]
-doc = { features = ["skip_compare_cache"] }

float-pigment-css/Cargo.toml

@@ -40,14 +40,14 @@ std = ["serde/std", "serde_json/std", "bit-set/std", "num-traits/std", "half/std
 no-std-lock = []
 wasm-entrance = ["wasm-bindgen", "console_log", "console_error_panic_hook", "js-sys"]
 build-cpp-header = ["cbindgen", "fs_extra"]
-flutter = []
 serialize = []
 deserialize = []
 serialize_json = []
 deserialize_json = []
 write_cache = []
 compatibility_test = []
 compile_cache = ["toml", "colorful"]
+skip_compare_cache = ["float-pigment-css-macro/skip_compare_cache"]
 ffi = []
 
 [dependencies]