BufferingSettings: simplify buffering control.

Now only 2 marks, initialMarkMs and resumPlaybackMarkMs, remain.
Test: pass cts tests
Bug: 36280094
Change-Id: I03c8e2a0db9f7e845f57e76f51874cd8715a48d4
diff --git a/media/libmediaplayerservice/nuplayer/StreamingSource.cpp b/media/libmediaplayerservice/nuplayer/StreamingSource.cpp
index 36abcdd..388ca20 100644
--- a/media/libmediaplayerservice/nuplayer/StreamingSource.cpp
+++ b/media/libmediaplayerservice/nuplayer/StreamingSource.cpp
@@ -51,19 +51,14 @@
     }
 }
 
-status_t NuPlayer::StreamingSource::getDefaultBufferingSettings(
+status_t NuPlayer::StreamingSource::getBufferingSettings(
         BufferingSettings *buffering /* nonnull */) {
     *buffering = BufferingSettings();
     return OK;
 }
 
 status_t NuPlayer::StreamingSource::setBufferingSettings(
-        const BufferingSettings &buffering) {
-    if (buffering.mInitialBufferingMode != BUFFERING_MODE_NONE
-            || buffering.mRebufferingMode != BUFFERING_MODE_NONE) {
-        return BAD_VALUE;
-    }
-
+        const BufferingSettings & /* buffering */) {
     return OK;
 }