Revert "Added function for reading file contents"

This reverts commit e324e298b9.

h5p-default-storage.class.php

@@ -247,16 +247,6 @@ class H5PDefaultStorage implements \H5PFileStorage {
     }
   }
 
-  /**
-   * Read file content of given file and then return it.
-   *
-   * @param string $file_path
-   * @return string
-   */
-  public function getContent($file_path) {
-    return file_get_contents($this->path . $file_path);
-  }
-
   /**
    * Recursive function for copying directories.
    *

h5p-file-storage.interface.php

@@ -117,12 +117,4 @@ interface H5PFileStorage {
    *   The hash keys of removed files
    */
   public function deleteCachedAssets($keys);
-
-  /**
-   * Read file content of given file and then return it.
-   *
-   * @param string $file_path
-   * @return string contents
-   */
-  public function getContent($file_path);
 }