Revert "Parse RTP-Info even for live streams."

This reverts commit d873413ff9f742f259c29d7d0b58265db6b24529.
diff --git a/media/libstagefright/rtsp/MyHandler.h b/media/libstagefright/rtsp/MyHandler.h
index f89f8e2..d15d9c5 100644
--- a/media/libstagefright/rtsp/MyHandler.h
+++ b/media/libstagefright/rtsp/MyHandler.h
@@ -995,12 +995,10 @@
         AString val;
         CHECK(GetAttribute(range.c_str(), "npt", &val));
 
-        bool seekable = true;
-
         float npt1, npt2;
         if (!ASessionDescription::parseNTPRange(val.c_str(), &npt1, &npt2)) {
             // This is a live stream and therefore not seekable.
-            seekable = false;
+            return;
         }
 
         i = response->mHeaders.indexOfKey("rtp-info");
@@ -1046,7 +1044,7 @@
             ++n;
         }
 
-        mSeekable = seekable;
+        mSeekable = true;
     }
 
     sp<APacketSource> getPacketSource(size_t index) {