Remove two obsolete TODOs from http_decoder.cc.

Remove TODO for incremental parsing of PRIORITY frames because PRIORITY frames have a very limited maximum size and it seems quite silly to change Visitor interface to handle PRIORITY frames field-by-field.

Remove TODO for incremental parsing of SETTINGS frames because it is not worth the complexity.  See prototype at cr/264362665.

gfe-relnote: n/a, change to comments only.
PiperOrigin-RevId: 264628766
Change-Id: I1a4006549f591d25c6614322b13ee96262d2d83b

quic/core/http/http_decoder.cc

diff --git a/quic/core/http/http_decoder.cc b/quic/core/http/http_decoder.cc
index 3a13300..78f8539 100644
--- a/quic/core/http/http_decoder.cc
+++ b/quic/core/http/http_decoder.cc
@@ -520,7 +520,6 @@
   // TODO(bnc): Close connection with HTTP_MALFORMED_FRAME
   // if lowest three bits are not all zero.
 
-  // TODO(b/137359636): Handle partial delivery.
   if (frame->prioritized_type != ROOT_OF_TREE &&
       !reader->ReadVarInt62(&frame->prioritized_element_id)) {
     // TODO(b/124216424): Use HTTP_MALFORMED_FRAME.
@@ -552,7 +551,6 @@
 bool HttpDecoder::ParseSettingsFrame(QuicDataReader* reader,
                                      SettingsFrame* frame) {
   while (!reader->IsDoneReading()) {
-    // TODO(bnc): Handle partial delivery of both fields.
     uint64_t id;
     if (!reader->ReadVarInt62(&id)) {
       // TODO(b/124216424): Use HTTP_MALFORMED_FRAME.