libc: Finish removing fscandir{,_b}().

These only existed for a few days before being renamed, so there's no
reason to continue to carry compatibility shims for them.

Fixes:		deeebfdeca
Sponsored by:	Klara, Inc.
Reviewed by:	kevans
Differential Revision:	https://reviews.freebsd.org/D50981

ObsoleteFiles.inc

@@ -60,10 +60,6 @@ MOVED_LIBS+=usr/lib/libtpool.so.2
 # 20250626: replace yaml.lua with lyaml
 OLD_FILES+=usr/share/flua/yaml.lua
 
-# 20250623: fscandir() renamed to fdscandir()
-OLD_FILES+=usr/share/man/man3/fscandir.3.gz
-OLD_FILES+=usr/share/man/man3/fscandir_b.3.gz
-
 # 20250615: don't install man page for absent function
 OLD_FILES+=usr/share/man/man9/vm_map_simplify_entry.9.gz
 

lib/libc/gen/Symbol.map

@@ -458,8 +458,6 @@ FBSD_1.8 {
 	aio_read2;
 	aio_write2;
 	execvpe;
-	fscandir;
-	fscandir_b;
 	fdscandir;
 	fdscandir_b;
 	fts_open_b;

lib/libc/gen/scandir.c

@@ -252,9 +252,3 @@ scandir_thunk_cmp(const void *p1, const void *p2, void *thunk)
 	return (dc((const struct dirent **)p1, (const struct dirent **)p2));
 }
 #endif
-
-#ifdef I_AM_SCANDIR_B
-__weak_reference(fdscandir_b, fscandir_b);
-#else
-__weak_reference(fdscandir, fscandir);
-#endif