Remove unused accessor.

QpackHeaderTable::maximum_dynamic_table_capacity() and
QpackEncoder::maximum_dynamic_table_capacity() are never used in production.
And for tests we have QpackEncoderPeer and QpackHeaderTablePeer.

gfe-relnote: n/a, remove unused code.
PiperOrigin-RevId: 265088568
Change-Id: I4eb57d18338966667a075f36ad51433b4dd1e131

quic/core/qpack/qpack_encoder.h

diff --git a/quic/core/qpack/qpack_encoder.h b/quic/core/qpack/qpack_encoder.h
index 67f1faa..993b76e 100644
--- a/quic/core/qpack/qpack_encoder.h
+++ b/quic/core/qpack/qpack_encoder.h
@@ -78,10 +78,6 @@
     return &decoder_stream_receiver_;
   }
 
-  uint64_t maximum_dynamic_table_capacity() const {
-    return header_table_.maximum_dynamic_table_capacity();
-  }
-
  private:
   friend class test::QpackEncoderPeer;
 

quic/core/qpack/qpack_header_table.h

diff --git a/quic/core/qpack/qpack_header_table.h b/quic/core/qpack/qpack_header_table.h
index 672c3ef..f251894 100644
--- a/quic/core/qpack/qpack_header_table.h
+++ b/quic/core/qpack/qpack_header_table.h
@@ -119,10 +119,6 @@
   // The returned index might not be the index of a valid entry.
   uint64_t draining_index(float draining_fraction) const;
 
-  uint64_t maximum_dynamic_table_capacity() const {
-    return maximum_dynamic_table_capacity_;
-  }
-
  private:
   friend class test::QpackHeaderTablePeer;