ftruncate, fts, lstat, openat, raise: no 'static inline'

ftruncate, fts, lstat, openat, raise: no 'static inline'

* lib/ftruncate.c (chsize_nothrow):
* lib/fts.c (opendirat, diropen):
* lib/lstat.c (orig_lstat):
* lib/openat.c (orig_openat):
* lib/raise.c (raise_nothrow):
Now static, not static inline.
* m4/ftruncate.m4 (gl_PREREQ_FTRUNCATE):
* m4/fts.m4 (gl_FUNC_FTS_CORE):
* m4/lstat.m4 (gl_PREREQ_LSTAT):
* m4/openat.m4 (gl_PREREQ_OPENAT):
* m4/raise.m4 (gl_PREREQ_RAISE):
Do not require AC_C_INLINE.