Removed indexOfNot method

Removed the unused method indexOfNot

library/src/main/java/com/google/android/exoplayer/metadata/Id3Parser.java

@@ -127,15 +127,6 @@ public class Id3Parser implements MetadataParser<Map<String, Object>> {
     return data.length;
     return data.length;
   }
   }
 
 
-  private static int indexOfNot(byte[] data, int fromIndex, byte key) {
-    for (int i = fromIndex; i < data.length; i++) {
-      if (data[i] != key) {
-        return i;
-      }
-    }
-    return data.length;
-  }
-
   private static int indexOfEOS(byte[] data, int fromIndex, int encodingByte) {
   private static int indexOfEOS(byte[] data, int fromIndex, int encodingByte) {
     int terminationPos = indexOf(data, fromIndex, (byte) 0);
     int terminationPos = indexOf(data, fromIndex, (byte) 0);