Remove encodeString() and encodeString(String)

These are not used in jclouds and callers should use
String.getBytes(Charset) directly, preferably with Guava Charsets
constants.

core/src/main/java/org/jclouds/util/Strings2.java

@@ -125,8 +125,6 @@ public class Strings2 {
       return input;
    }
 
-   public static final String UTF8_ENCODING = "UTF-8";
-
    public static String toString(InputSupplier<? extends InputStream> supplier)
          throws IOException {
       return CharStreams.toString(CharStreams.newReaderSupplier(supplier,
@@ -151,43 +149,9 @@ public class Strings2 {
       return new ByteArrayInputStream(in.getBytes(Charsets.UTF_8));
    }
 
-   /**
-    * Encode the given string with the given encoding, if possible. If the encoding fails with
-    * {@link UnsupportedEncodingException}, log a warning and fall back to the system's default
-    * encoding.
-    * 
-    * @param str
-    *           what to encode
-    * @param charsetName
-    *           the name of a supported {@link java.nio.charset.Charset </code>charset<code>}
-    * @return properly encoded String.
-    */
-   public static byte[] encodeString(String str, String charsetName) {
-      try {
-         return str.getBytes(charsetName);
-      } catch (UnsupportedEncodingException e) {
-         logger.warn(e, "Failed to encode string to bytes with encoding " + charsetName
-               + ". Falling back to system's default encoding");
-         return str.getBytes();
-      }
-   }
-
    @Resource
    private static Logger logger = Logger.NULL;
 
-   /**
-    * Encode the given string with the UTF-8 encoding, the sane default. In the very unlikely event
-    * the encoding fails with {@link UnsupportedEncodingException}, log a warning and fall back to
-    * the system's default encoding.
-    * 
-    * @param str
-    *           what to encode
-    * @return properly encoded String.
-    */
-   public static byte[] encodeString(String str) {
-      return encodeString(str, UTF8_ENCODING);
-   }
-
    /**
     * replaces tokens that are expressed as <code>{token}</code>
     *