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diff --git a/deps/libchdr/deps/zlib-1.2.13/examples/zran.h b/deps/libchdr/deps/zlib-1.2.13/examples/zran.h
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index 2314125d..00000000
--- a/deps/libchdr/deps/zlib-1.2.13/examples/zran.h
+++ /dev/null
@@ -1,40 +0,0 @@
-/* zran.h -- example of zlib/gzip stream indexing and random access
- * Copyright (C) 2005, 2012, 2018 Mark Adler
- * For conditions of distribution and use, see copyright notice in zlib.h
- * Version 1.2  14 Oct 2018  Mark Adler */
-
-#include <stdio.h>
-#include "zlib.h"
-
-/* Access point list. */
-struct deflate_index {
-    int have;           /* number of list entries */
-    int gzip;           /* 1 if the index is of a gzip file, 0 if it is of a
-                           zlib stream */
-    off_t length;       /* total length of uncompressed data */
-    void *list;         /* allocated list of entries */
-};
-
-/* Make one entire pass through a zlib or gzip compressed stream and build an
-   index, with access points about every span bytes of uncompressed output.
-   gzip files with multiple members are indexed in their entirety. span should
-   be chosen to balance the speed of random access against the memory
-   requirements of the list, about 32K bytes per access point. The return value
-   is the number of access points on success (>= 1), Z_MEM_ERROR for out of
-   memory, Z_DATA_ERROR for an error in the input file, or Z_ERRNO for a file
-   read error. On success, *built points to the resulting index. */
-int deflate_index_build(FILE *in, off_t span, struct deflate_index **built);
-
-/* Deallocate an index built by deflate_index_build() */
-void deflate_index_free(struct deflate_index *index);
-
-/* Use the index to read len bytes from offset into buf. Return bytes read or
-   negative for error (Z_DATA_ERROR or Z_MEM_ERROR). If data is requested past
-   the end of the uncompressed data, then deflate_index_extract() will return a
-   value less than len, indicating how much was actually read into buf. This
-   function should not return a data error unless the file was modified since
-   the index was generated, since deflate_index_build() validated all of the
-   input. deflate_index_extract() will return Z_ERRNO if there is an error on
-   reading or seeking the input file. */
-int deflate_index_extract(FILE *in, struct deflate_index *index, off_t offset,
-                          unsigned char *buf, int len);