Axe our internal and buggy glob() and fnmatch() copies

glibc 2.2 (or thereabouts) changed glob() and fnmatch() to not return
dangling symlinks as matches, which gravely affects rpmbuild in particular.
Because of this, rpm has carried a bundled copies of glibc 2.1 functions
for close to 22 years now (commit bed2a465fe49ce05f9678e619d016a2d26649c98).
glibc 2.27 in 2018 thankfully finally reverted that particular braindamage,
I think we've carried the compatibility babbage long enough to excuse
ourselves with a little shorter grace period in this case.
Nukes away, add a blurb about the version requirement on glibc
based systems.

This still leaves our internal glob_pattern_p() intact as unlike glob()
itself, that's not portable.

No functional changes as such.

1 files changed, 0 insertions, 4 deletions

diff --git a/system.h b/system.h
index a5d236843..461712a0a 100644
--- a/system.h
+++ b/system.h
@@ -100,8 +100,4 @@ extern int fdatasync(int fildes);
 
 #define N_(Text) Text
 
-/* ============== from misc/miscfn.h */
-
-#include "misc/fnmatch.h"
-
 #endif	/* H_SYSTEM */