refactor: remove PluginHeaderData

This class might become a decorator for `HeaderParser`, but at this
moment our functionality is implemented within `PluginInit` class
without loosing to much readability.

Signed-off-by: Bart Jaskulski <bjaskulski@protonmail.com>

src/PluginHeaderData.php

-<?php
-declare( strict_types=1 );
-
-namespace WPDesk\Init;
-
-use WPDesk\Init\Configuration\ReadableConfig;
-use WPDesk\Init\Dumper\PhpFileDumper;
-use WPDesk\Init\Loader\PhpFileLoader;
-
-class PluginHeaderData {
-
-	/** @var PluginHeaderParser */
-	private $parser;
-
-	/** @var PhpFileLoader */
-	private $loader;
-
-	/** @var PhpFileDumper */
-	private $dumper;
-
-	/** @var ReadableConfig */
-	private $config;
-
-	public function __construct(
-		PluginHeaderParser $parser,
-		PhpFileLoader $loader,
-		PhpFileDumper $dumper,
-		ReadableConfig $config
-	) {
-		$this->parser = $parser;
-		$this->loader = $loader;
-		$this->dumper = $dumper;
-		$this->config = $config;
-	}
-
-	public function get_plugin_data( string $plugin_file ): array {
-		$cache_path = $this->config->get( 'cache_path', 'generated' ) . '/plugin.php';
-		try {
-			return $this->loader->load( $cache_path );
-		} catch ( \Exception $e ) {
-			$plugin_data = $this->parser->parse( $plugin_file );
-			$this->dumper->dump( $plugin_data, $cache_path );
-
-			return $this->loader->load( $cache_path );
-		}
-	}
-
-}
\ No newline at end of file