ld64: fix build with llvm19

remove unused and incomplete function

pkgs/by-name/ld/ld64/package.nix

@@ -128,6 +128,7 @@ stdenv.mkDerivation (finalAttrs: {
     ./0006-Add-libcd_is_blob_a_linker_signature-implementation.patch
     # Add OpenSSL implementation of CoreCrypto digest functions. Avoids use of private and non-free APIs.
     ./0007-Add-OpenSSL-based-CoreCrypto-digest-functions.patch
+    ./remove-unused-and-incomplete-blob-clone.diff
   ];
 
   postPatch = ''

pkgs/by-name/ld/ld64/remove-unused-and-incomplete-blob-clone.diff

@@ -0,0 +1,14 @@
+diff --git a/src/ld/code-sign-blobs/blob.h b/src/ld/code-sign-blobs/blob.h
+index 19c63a9..1dfb380 100644
+--- a/src/ld/code-sign-blobs/blob.h
++++ b/src/ld/code-sign-blobs/blob.h
+@@ -180,9 +180,6 @@ public:
+ 		return NULL;
+ 	}
+ 	
+-	BlobType *clone() const
+-	{ assert(validateBlob()); return specific(this->BlobCore::clone());	}
+-
+ 	static BlobType *readBlob(int fd)
+ 	{ return specific(BlobCore::readBlob(fd, _magic, sizeof(BlobType), 0), true); }
+