From 9c246c77aa71907dd4326d7f52471732ad7a6cc9 Mon Sep 17 00:00:00 2001
From: Carti <carti_it@proton.me>
Date: Sun, 6 Sep 2026 18:45:34 +0200
Subject: [PATCH] Remove use of `NO_MEM_BUFFER`

---
 NBitcoin/Crypto/HashStream.cs    | 5 -----
 NBitcoin/IBitcoinSerializable.cs | 4 ----
 2 files changed, 9 deletions(-)

diff --git a/NBitcoin/Crypto/HashStream.cs b/NBitcoin/Crypto/HashStream.cs
index 1e4c96c3d..c5f53cf87 100644
--- a/NBitcoin/Crypto/HashStream.cs
+++ b/NBitcoin/Crypto/HashStream.cs
@@ -310,12 +310,7 @@ public override void WriteByte(byte value)
 
 		public override uint256 GetHash()
 		{
-#if NO_MEM_BUFFER
-			var copy = ms.ToArray();
-			return GetHash(copy, 0, (int)copy.Length);
-#else
 			return GetHash(ms.GetBuffer(), 0, (int)ms.Length);
-#endif
 		}
 
 		protected abstract uint256 GetHash(byte[] data, int offset, int length);
diff --git a/NBitcoin/IBitcoinSerializable.cs b/NBitcoin/IBitcoinSerializable.cs
index fe962571c..984d95de6 100644
--- a/NBitcoin/IBitcoinSerializable.cs
+++ b/NBitcoin/IBitcoinSerializable.cs
@@ -90,13 +90,9 @@ public static byte[] ToBytes(this IBitcoinSerializable serializable, uint? versi
 
 		public static byte[] ToArrayEfficient(this MemoryStream ms)
 		{
-#if NO_MEM_BUFFER
-			return ms.ToArray();
-#else
 			var bytes = ms.GetBuffer();
 			Array.Resize(ref bytes, (int)ms.Length);
 			return bytes;
-#endif
 		}
 	}
 }