Removed workaround for lack of Either methods in 2.10/2.11

Author: mpilquist

core/shared/src/main/scala/scodec/bits/package.scala

@@ -36,21 +36,4 @@ package object bits extends ScalaVersionSpecific {
       */
     def hex(args: ByteVector*): ByteVector = macro LiteralSyntaxMacros.hexStringInterpolator
   }
-
-  private[bits] implicit class EitherOps[L, R](val self: Either[L, R]) extends AnyVal {
-    def map[R2](f: R => R2): Either[L, R2] = self match {
-      case Right(r)      => Right(f(r))
-      case l: Left[L, R] => l.asInstanceOf[Either[L, R2]]
-    }
-
-    def flatMap[R2](f: R => Either[L, R2]): Either[L, R2] = self match {
-      case Right(r)      => f(r)
-      case l: Left[L, R] => l.asInstanceOf[Either[L, R2]]
-    }
-
-    def toOption: Option[R] = self match {
-      case Right(r) => Some(r)
-      case Left(_)  => None
-    }
-  }
 }