Remove unused legacy CHashVerifier

Author: MarcoFalke

src/hash.h

@@ -199,39 +199,6 @@ class HashVerifier : public HashWriter
     }
 };
 
-template<typename Source>
-class CHashVerifier : public CHashWriter
-{
-private:
-    Source* source;
-
-public:
-    explicit CHashVerifier(Source* source_) : CHashWriter(source_->GetType(), source_->GetVersion()), source(source_) {}
-
-    void read(Span<std::byte> dst)
-    {
-        source->read(dst);
-        this->write(dst);
-    }
-
-    void ignore(size_t nSize)
-    {
-        std::byte data[1024];
-        while (nSize > 0) {
-            size_t now = std::min<size_t>(nSize, 1024);
-            read({data, now});
-            nSize -= now;
-        }
-    }
-
-    template<typename T>
-    CHashVerifier<Source>& operator>>(T&& obj)
-    {
-        ::Unserialize(*this, obj);
-        return (*this);
-    }
-};
-
 /** Writes data to an underlying source stream, while hashing the written data. */
 template <typename Source>
 class HashedSourceWriter : public HashWriter

src/test/streams_tests.cpp

@@ -553,12 +553,12 @@ BOOST_AUTO_TEST_CASE(streams_buffered_file_rand)
 
 BOOST_AUTO_TEST_CASE(streams_hashed)
 {
-    CDataStream stream(SER_NETWORK, INIT_PROTO_VERSION);
+    DataStream stream{};
     HashedSourceWriter hash_writer{stream};
     const std::string data{"bitcoin"};
     hash_writer << data;
 
-    CHashVerifier hash_verifier{&stream};
+    HashVerifier hash_verifier{stream};
     std::string result;
     hash_verifier >> result;
     BOOST_CHECK_EQUAL(data, result);