Remove compiled_data Default ctors from types which are prone to chan…

…ge sufficiently often

unicode-org#5554 (comment)

components/locale/src/canonicalizer.rs

@@ -194,20 +194,14 @@ fn uts35_check_language_rules(
     TransformResult::Unmodified
 }
 
-#[cfg(feature = "compiled_data")]
-impl Default for LocaleCanonicalizer<LocaleExpander> {
-    fn default() -> Self {
-        Self::new()
-    }
-}
-
 impl LocaleCanonicalizer<LocaleExpander> {
     /// A constructor which creates a [`LocaleCanonicalizer`] from compiled data.
     ///
     /// ✨ *Enabled with the `compiled_data` Cargo feature.*
     ///
     /// [📚 Help choosing a constructor](icu_provider::constructors)
     #[cfg(feature = "compiled_data")]
+    #[allow(clippy::new_without_default)]
     pub const fn new() -> Self {
         Self::new_with_expander(LocaleExpander::new_extended())
     }

components/locale/src/expander.rs

@@ -209,13 +209,6 @@ fn update_langid_minimize(
     }
 }
 
-#[cfg(feature = "compiled_data")]
-impl Default for LocaleExpander {
-    fn default() -> Self {
-        Self::new()
-    }
-}
-
 impl LocaleExpander {
     /// Creates a [`LocaleExpander`] with compiled data for commonly-used locales
     /// (locales with *Basic* or higher [CLDR coverage]).
@@ -228,6 +221,7 @@ impl LocaleExpander {
     ///
     /// [CLDR coverage]: https://www.unicode.org/reports/tr35/tr35-info.html#Coverage_Levels
     #[cfg(feature = "compiled_data")]
+    #[allow(clippy::new_without_default)]
     pub const fn new() -> Self {
         LocaleExpander {
             likely_subtags_l: DataPayload::from_static_ref(

components/locale/src/fallback/mod.rs

@@ -184,20 +184,14 @@ impl<'a> LocaleFallbackerBorrowed<'a> {
     }
 }
 
-#[cfg(feature = "compiled_data")]
-impl Default for LocaleFallbackerBorrowed<'static> {
-    fn default() -> Self {
-        Self::new()
-    }
-}
-
 impl LocaleFallbackerBorrowed<'static> {
     /// Creates a [`LocaleFallbackerBorrowed`] with compiled fallback data (likely subtags and parent locales).
     ///
     /// ✨ *Enabled with the `compiled_data` Cargo feature.*
     ///
     /// [📚 Help choosing a constructor](icu_provider::constructors)
     #[cfg(feature = "compiled_data")]
+    #[allow(clippy::new_without_default)]
     pub const fn new() -> Self {
         Self {
             likely_subtags: crate::provider::Baked::SINGLETON_LIKELY_SUBTAGS_FOR_LANGUAGE_V1_MARKER,

components/segmenter/src/grapheme.rs

@@ -131,13 +131,6 @@ pub struct GraphemeClusterSegmenter {
     payload: DataPayload<GraphemeClusterBreakDataV2Marker>,
 }
 
-#[cfg(feature = "compiled_data")]
-impl Default for GraphemeClusterSegmenter {
-    fn default() -> Self {
-        Self::new()
-    }
-}
-
 impl GraphemeClusterSegmenter {
     /// Constructs a [`GraphemeClusterSegmenter`] with an invariant locale from compiled data.
     ///

components/segmenter/src/sentence.rs

@@ -112,13 +112,6 @@ pub struct SentenceSegmenter {
     payload_locale_override: Option<DataPayload<SentenceBreakDataOverrideV1Marker>>,
 }
 
-#[cfg(feature = "compiled_data")]
-impl Default for SentenceSegmenter {
-    fn default() -> Self {
-        Self::new()
-    }
-}
-
 impl SentenceSegmenter {
     /// Constructs a [`SentenceSegmenter`] with an invariant locale and compiled data.
     ///