Remove one forgoten K&R function definition
https://bugs.gentoo.org/880525
--- a/eb/binary.c	2025-02-27 15:00:13.585242692 +0400
+++ b/eb/binary.c	2025-02-27 15:02:39.112239956 +0400
@@ -923,12 +923,7 @@
  * Read binary data.
  */
 EB_Error_Code
-eb_read_binary(book, binary_max_length, binary, binary_length)
-    EB_Book *book;
-    size_t binary_max_length;
-    char *binary;
-    ssize_t *binary_length;
-
+eb_read_binary(EB_Book *book, size_t binary_max_length, char *binary, ssize_t *binary_length)
 {
     EB_Error_Code error_code;