IMediaPlayer: NULL pointer is valid for httpService in some cases.

Bug: 26524606
Change-Id: Ib3323618f9bb8883e8a398c62975a0cc278c64a3
diff --git a/media/libmedia/IMediaPlayer.cpp b/media/libmedia/IMediaPlayer.cpp
index c523629..519a1fd 100644
--- a/media/libmedia/IMediaPlayer.cpp
+++ b/media/libmedia/IMediaPlayer.cpp
@@ -444,7 +444,7 @@
             }
 
             const char* url = data.readCString();
-            if (httpService == NULL || url == NULL) {
+            if (url == NULL) {
                 reply->writeInt32(BAD_VALUE);
                 return NO_ERROR;
             }