Remove unicode quotes in javadoc for AudioFocusRequest and MediaPlayer

These appear in the public docs as escape sequences (eg, \u201c).

Bug: None
Test: compile (comment-only change)
Change-Id: Ie644a036444f185ed17b3dbc7afdc69b81eef910

media/java/android/media/AudioFocusRequest.java

@@ -39,8 +39,8 @@ import android.os.Looper;
  * but there is only one the user would really listen to (focus on), while the other plays in
  * the background. An example of this is driving directions being spoken while music plays at
  * a reduced volume (a.k.a. ducking).
- * <p>When an application requests audio focus, it expresses its intention to “own” audio focus to
- * play audio. Let’s review the different types of focus requests, the return value after a request,
+ * <p>When an application requests audio focus, it expresses its intention to "own" audio focus to
+ * play audio. Let's review the different types of focus requests, the return value after a request,
  * and the responses to a loss.
  * <p class="note">Note: applications should not play anything until granted focus.</p>
  *
@@ -51,7 +51,7 @@ import android.os.Looper;
  * <li>{@link AudioManager#AUDIOFOCUS_GAIN} expresses the fact that your application is now the
  * sole source of audio that the user is listening to. The duration of the audio playback is
  * unknown, and is possibly very long: after the user finishes interacting with your application,
- * (s)he doesn’t expect another audio stream to resume. Examples of uses of this focus gain are
+ * (s)he doesn't expect another audio stream to resume. Examples of uses of this focus gain are
  * for music playback, for a game or a video player.</li>
  *
  * <li>{@link AudioManager#AUDIOFOCUS_GAIN_TRANSIENT} is for a situation when you know your
@@ -60,20 +60,20 @@ import android.os.Looper;
  * for playing an alarm, or during a VoIP call. The playback is known to be finite: the alarm will
  * time-out or be dismissed, the VoIP call has a beginning and an end. When any of those events
  * ends, and if the user was listening to music when it started, the user expects music to resume,
- * but didn’t wish to listen to both at the same time.</li>
+ * but didn't wish to listen to both at the same time.</li>
  *
  * <li>{@link AudioManager#AUDIOFOCUS_GAIN_TRANSIENT_MAY_DUCK}: this focus request type is similar
  * to {@code AUDIOFOCUS_GAIN_TRANSIENT} for the temporary aspect of the focus request, but it also
  * expresses the fact during the time you own focus, you allow another application to keep playing
- * at a reduced volume, “ducked”. Examples are when playing driving directions or notifications,
- * it’s ok for music to keep playing, but not loud enough that it would prevent the directions to
- * be hard to understand. A typical attenuation by the “ducked” application is a factor of 0.2f
+ * at a reduced volume, "ducked". Examples are when playing driving directions or notifications,
+ * it's ok for music to keep playing, but not loud enough that it would prevent the directions to
+ * be hard to understand. A typical attenuation by the "ducked" application is a factor of 0.2f
  * (or -14dB), that can for instance be applied with {@code MediaPlayer.setVolume(0.2f)} when
  * using this class for playback.</li>
  *
  * <li>{@link AudioManager#AUDIOFOCUS_GAIN_TRANSIENT_EXCLUSIVE} is also for a temporary request,
  * but also expresses that your application expects the device to not play anything else. This is
- * typically used if you are doing audio recording or speech recognition, and don’t want for
+ * typically used if you are doing audio recording or speech recognition, and don't want for
  * examples notifications to be played by the system during that time.</li>
  * </ul>
  *

media/java/android/media/MediaPlayer.java

@@ -1057,7 +1057,7 @@ public class MediaPlayer extends PlayerBase
      * this API to pass the cookies as a list of HttpCookie. If the app has not installed
      * a CookieHandler already, this API creates a CookieManager and populates its CookieStore with
      * the provided cookies. If the app has installed its own handler already, this API requires the
-     * handler to be of CookieManager type such that the API can update the manager’s CookieStore.
+     * handler to be of CookieManager type such that the API can update the manager's CookieStore.
      *
      * <p><strong>Note</strong> that the cross domain redirection is allowed by default,
      * but that can be changed with key/value pairs through the headers parameter with