Renamed hashmap.c to linked-list.c and removed the hashmap code.
diff --git a/MagickCore/coder.c b/MagickCore/coder.c
index 2652515..1231ba0 100644
--- a/MagickCore/coder.c
+++ b/MagickCore/coder.c
@@ -48,7 +48,7 @@
 #include "MagickCore/draw.h"
 #include "MagickCore/exception.h"
 #include "MagickCore/exception-private.h"
-#include "MagickCore/hashmap.h"
+#include "MagickCore/linked-list.h"
 #include "MagickCore/log.h"
 #include "MagickCore/memory_.h"
 #include "MagickCore/option.h"