Disable DOUBLY_LINKED_FL

Fixes dotnet#44250

Author: jkotas

src/coreclr/src/gc/gcpriv.h

@@ -66,7 +66,7 @@ inline void FATAL_GC_ERROR()
 // We need the lower 3 bits in the MT to do our bookkeeping so doubly linked free list is only for 64-bit
 #ifdef HOST_64BIT
 // To be enabled.
-#define DOUBLY_LINKED_FL
+// #define DOUBLY_LINKED_FL
 #endif //HOST_64BIT
 
 #ifndef FEATURE_REDHAWK