fuzz: Drop unused version from fuzz input format

Author: MarcoFalke

src/test/fuzz/block.cpp

@@ -13,7 +13,6 @@
 #include <test/fuzz/fuzz.h>
 #include <util/chaintype.h>
 #include <validation.h>
-#include <version.h>
 
 #include <cassert>
 #include <string>
@@ -25,12 +24,9 @@ void initialize_block()
 
 FUZZ_TARGET(block, .init = initialize_block)
 {
-    CDataStream ds(buffer, SER_NETWORK, INIT_PROTO_VERSION);
+    DataStream ds{buffer};
     CBlock block;
     try {
-        int nVersion;
-        ds >> nVersion;
-        ds.SetVersion(nVersion);
         ds >> TX_WITH_WITNESS(block);
     } catch (const std::ios_base::failure&) {
         return;

src/test/fuzz/deserialize.cpp

@@ -28,7 +28,6 @@
 #include <test/fuzz/util.h>
 #include <test/util/setup_common.h>
 #include <undo.h>
-#include <version.h>
 
 #include <exception>
 #include <optional>
@@ -91,15 +90,15 @@ void DeserializeFromFuzzingInput(FuzzBufferType buffer, T&& obj, const P& params
 }
 
 template <typename T>
-CDataStream Serialize(const T& obj)
+DataStream Serialize(const T& obj)
 {
-    CDataStream ds{SER_NETWORK, INIT_PROTO_VERSION};
+    DataStream ds{};
     ds << obj;
     return ds;
 }
 
 template <typename T>
-T Deserialize(CDataStream ds)
+T Deserialize(DataStream ds)
 {
     T obj;
     ds >> obj;
@@ -109,16 +108,7 @@ T Deserialize(CDataStream ds)
 template <typename T>
 void DeserializeFromFuzzingInput(FuzzBufferType buffer, T&& obj)
 {
-    CDataStream ds{buffer, SER_NETWORK, INIT_PROTO_VERSION};
-    {
-        try {
-            int version;
-            ds >> version;
-            ds.SetVersion(version);
-        } catch (const std::ios_base::failure&) {
-            throw invalid_fuzzing_input_exception();
-        }
-    }
+    DataStream ds{buffer};
     try {
         ds >> obj;
     } catch (const std::ios_base::failure&) {

src/test/fuzz/transaction.cpp

@@ -18,7 +18,6 @@
 #include <util/chaintype.h>
 #include <util/rbf.h>
 #include <validation.h>
-#include <version.h>
 
 #include <cassert>
 
@@ -29,14 +28,7 @@ void initialize_transaction()
 
 FUZZ_TARGET(transaction, .init = initialize_transaction)
 {
-    CDataStream ds(buffer, SER_NETWORK, INIT_PROTO_VERSION);
-    try {
-        int nVersion;
-        ds >> nVersion;
-        ds.SetVersion(nVersion);
-    } catch (const std::ios_base::failure&) {
-        return;
-    }
+    DataStream ds{buffer};
     bool valid_tx = true;
     const CTransaction tx = [&] {
         try {
@@ -47,12 +39,9 @@ FUZZ_TARGET(transaction, .init = initialize_transaction)
         }
     }();
     bool valid_mutable_tx = true;
-    CDataStream ds_mtx(buffer, SER_NETWORK, INIT_PROTO_VERSION);
+    DataStream ds_mtx{buffer};
     CMutableTransaction mutable_tx;
     try {
-        int nVersion;
-        ds_mtx >> nVersion;
-        ds_mtx.SetVersion(nVersion);
         ds_mtx >> TX_WITH_WITNESS(mutable_tx);
     } catch (const std::ios_base::failure&) {
         valid_mutable_tx = false;