Remove leftover from lazy copy&paste action.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@35303 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/apps/mediaplayer/MainWin.cpp

@@ -493,11 +493,6 @@ MainWin::MessageReceived(BMessage* msg)
 						}
 
 						result = reply.AddString("result", item->LocationURI());
-					} else if (msg->what == B_SET_PROPERTY) {
-						float newVolume;
-						result = msg->FindFloat("data", &newVolume);
-						if (result == B_OK)
-							fController->SetVolume(newVolume);
 					}
 
 					break;