chore(shirabe): remove ports of PHP @deprecated APIs

Composer does not use its own deprecated APIs internally, so drop their
Rust ports: whole deprecated classes, methods, constants, and field.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

3 files changed, 6 insertions, 47 deletions

diff --git a/crates/shirabe/src/autoload/autoload_generator.rs b/crates/shirabe/src/autoload/autoload_generator.rs
index 6505510..54f67a5 100644
--- a/crates/shirabe/src/autoload/autoload_generator.rs
+++ b/crates/shirabe/src/autoload/autoload_generator.rs
@@ -7,12 +7,12 @@ use shirabe_class_map_generator::class_map_generator::ClassMapGenerator;
 use shirabe_external_packages::composer::pcre::{CaptureKey, Preg};
 use shirabe_external_packages::symfony::component::console::formatter::OutputFormatter;
 use shirabe_php_shim::{
-    E_USER_DEPRECATED, InvalidArgumentException, PhpMixed, RuntimeException, array_filter,
-    array_keys, array_map, array_merge, array_merge_map, array_merge_recursive, array_reverse,
-    array_shift, array_slice, array_slice_strs, array_unique, bin2hex, explode, file_exists,
-    file_get_contents, hash, implode, in_array, is_array, krsort, ksort, ltrim, preg_quote,
-    random_bytes, realpath, sprintf, str_contains, str_replace, str_starts_with, strlen, strpos,
-    strtr, substr, substr_count, trigger_error, trim, unlink, var_export,
+    InvalidArgumentException, PhpMixed, RuntimeException, array_filter, array_keys, array_map,
+    array_merge, array_merge_map, array_merge_recursive, array_reverse, array_shift, array_slice,
+    array_slice_strs, array_unique, bin2hex, explode, file_exists, file_get_contents, hash,
+    implode, in_array, is_array, krsort, ksort, ltrim, preg_quote, random_bytes, realpath, sprintf,
+    str_contains, str_replace, str_starts_with, strlen, strpos, strtr, substr, substr_count, trim,
+    unlink, var_export,
 };
 use shirabe_semver::constraint::AnyConstraint;
 use shirabe_semver::constraint::Bound;
@@ -97,24 +97,6 @@ impl AutoloadGenerator {
         self.dry_run = dry_run;
     }
 
-    /// Whether platform requirements should be ignored.
-    ///
-    /// If this is set to true, the platform check file will not be generated
-    /// If this is set to false, the platform check file will be generated with all requirements
-    /// If this is set to string[], those packages will be ignored from the platform check file
-    ///
-    /// Deprecated: use setPlatformRequirementFilter instead
-    pub fn set_ignore_platform_requirements(&mut self, ignore_platform_reqs: PhpMixed) {
-        trigger_error(
-            "AutoloadGenerator::setIgnorePlatformRequirements is deprecated since Composer 2.2, use setPlatformRequirementFilter instead.",
-            E_USER_DEPRECATED,
-        );
-
-        self.set_platform_requirement_filter(
-            PlatformRequirementFilterFactory::from_bool_or_list(ignore_platform_reqs).unwrap(),
-        );
-    }
-
     pub fn set_platform_requirement_filter(
         &mut self,
         platform_requirement_filter: std::rc::Rc<dyn PlatformRequirementFilterInterface>,
diff --git a/crates/shirabe/src/autoload/class_map_generator.rs b/crates/shirabe/src/autoload/class_map_generator.rs
deleted file mode 100644
index 06dc34d..0000000
--- a/crates/shirabe/src/autoload/class_map_generator.rs
+++ /dev/null
@@ -1,21 +0,0 @@
-//! ref: composer/src/Composer/Autoload/ClassMapGenerator.php
-
-/// `Composer\Autoload\ClassMapGenerator`.
-///
-/// Deprecated since Composer 2.4.0 in favor of the composer/class-map-generator
-/// package (`shirabe-class-map-generator`), which Composer itself now uses
-/// directly. Composer's own code no longer references this class, so its
-/// `dump` / `createMap` methods are intentionally left unported.
-///
-/// Even though it is deprecated, plugins may still use it, so this type will
-/// eventually have to be implemented alongside plugin API support. It is left
-/// here intentionally so that implementation is not forgotten.
-///
-/// TODO(plugin): implement `dump` / `createMap` for plugins still relying on
-/// this deprecated class.
-#[derive(Debug)]
-#[deprecated(
-    since = "Composer 2.4.0",
-    note = "use the composer/class-map-generator package (shirabe-class-map-generator) instead"
-)]
-pub struct ClassMapGenerator;
diff --git a/crates/shirabe/src/autoload/mod.rs b/crates/shirabe/src/autoload/mod.rs
index cb0be1c..d5758b2 100644
--- a/crates/shirabe/src/autoload/mod.rs
+++ b/crates/shirabe/src/autoload/mod.rs
@@ -1,7 +1,5 @@
 pub mod autoload_generator;
 pub mod class_loader;
-pub mod class_map_generator;
 
 pub use autoload_generator::*;
 pub use class_loader::*;
-pub use class_map_generator::*;