patch 9.1.0924: patch 9.1.0923 causes issues

Problem:  patch 9.1.0923 causes issues (Shane-XB-Qian)
Solution: back-out the change

This reverts commit e29c8bafa7 (v9.1.0923)

fixes: #16213
related: #16160

Signed-off-by: Christian Brabandt <cb@256bit.org>

src/os_unix.c

@@ -6796,6 +6796,21 @@ select_eintr:
     return result;
 }
 
+/*
+ * Expand a path into all matching files and/or directories.  Handles "*",
+ * "?", "[a-z]", "**", etc.
+ * "path" has backslashes before chars that are not to be expanded.
+ * Returns the number of matches found.
+ */
+    int
+mch_expandpath(
+    garray_T	*gap,
+    char_u	*path,
+    int		flags)		// EW_* flags
+{
+    return unix_expandpath(gap, path, 0, flags, FALSE);
+}
+
 /*
  * mch_expand_wildcards() - this code does wild-card pattern matching using
  * the shell