Remove unnecessary parameter

Just get the parameter on server side

Change-Id: I433a63104dbb257e0d862be2ab61847cb36d1c15
diff --git a/media/libmedia/mediaplayer.cpp b/media/libmedia/mediaplayer.cpp
index bbbf4b6..dbff8dc 100644
--- a/media/libmedia/mediaplayer.cpp
+++ b/media/libmedia/mediaplayer.cpp
@@ -143,7 +143,7 @@
     if (url != NULL) {
         const sp<IMediaPlayerService>& service(getMediaPlayerService());
         if (service != 0) {
-            sp<IMediaPlayer> player(service->create(getpid(), this, mAudioSessionId));
+            sp<IMediaPlayer> player(service->create(this, mAudioSessionId));
             if ((NO_ERROR != doSetRetransmitEndpoint(player)) ||
                 (NO_ERROR != player->setDataSource(url, headers))) {
                 player.clear();
@@ -160,7 +160,7 @@
     status_t err = UNKNOWN_ERROR;
     const sp<IMediaPlayerService>& service(getMediaPlayerService());
     if (service != 0) {
-        sp<IMediaPlayer> player(service->create(getpid(), this, mAudioSessionId));
+        sp<IMediaPlayer> player(service->create(this, mAudioSessionId));
         if ((NO_ERROR != doSetRetransmitEndpoint(player)) ||
             (NO_ERROR != player->setDataSource(fd, offset, length))) {
             player.clear();
@@ -176,7 +176,7 @@
     status_t err = UNKNOWN_ERROR;
     const sp<IMediaPlayerService>& service(getMediaPlayerService());
     if (service != 0) {
-        sp<IMediaPlayer> player(service->create(getpid(), this, mAudioSessionId));
+        sp<IMediaPlayer> player(service->create(this, mAudioSessionId));
         if ((NO_ERROR != doSetRetransmitEndpoint(player)) ||
             (NO_ERROR != player->setDataSource(source))) {
             player.clear();