Remove irrelevant JavaDoc

Strings are never UTF-8 encoded.
Strings are a sequence of Unicode characters.
If these Unicode characters are encoded into a sequence of bytes
or decoded from a sequence of bytes, then encodings like UTF-8 come into play.

src/commonMain/kotlin/it/krzeminski/snakeyaml/engine/kmp/api/Load.kt

@@ -21,8 +21,6 @@ expect class Load(
     /**
      * Parse a YAML document and create an instance of an object.
      *
-     * The string must be encoded as UTF-8.
-     *
      * @param string YAML data to load from (BOM must not be present)
      * @return parsed instance
      * @throws it.krzeminski.snakeyaml.engine.kmp.exceptions.YamlEngineException if the YAML is not valid
@@ -44,8 +42,6 @@ expect class Load(
      * encoding in known BOM is not respected.) The documents are parsed only when the iterator is
      * invoked.
      *
-     * The string must be encoded as UTF-8.
-     *
      * @param string YAML data to load from (BOM must not be present)
      * @return an [Iterable] over the parsed objects in this stream in proper sequence
      */

src/commonMain/kotlin/it/krzeminski/snakeyaml/engine/kmp/api/LoadCommon.kt

@@ -40,8 +40,6 @@ internal class LoadCommon(
     /**
      * Parse a YAML document and create an instance of an object.
      *
-     * The string must be encoded as UTF-8.
-     *
      * @param string YAML data to load from (BOM must not be present)
      * @return parsed instance
      * @throws it.krzeminski.snakeyaml.engine.kmp.exceptions.YamlEngineException if the YAML is not valid
@@ -68,8 +66,6 @@ internal class LoadCommon(
      * encoding in known BOM is not respected.) The documents are parsed only when the iterator is
      * invoked.
      *
-     * The string must be encoded as UTF-8.
-     *
      * @param string YAML data to load from (BOM must not be present)
      * @return an [Iterable] over the parsed objects in this stream in proper sequence
      */