Remove %ldconfig_scriptlets (F28+ only)

%ldconfig_scriptlets does nothing on F28+.

The original idea was to keep is present not to unnecessarily diverge master
and f27, but since that have happened anyway, I'm removing it for spec
simplicity. Not adding a new changelog entry (it's not user facing) nor bumping
the release (it doesn't need to be rebuilt, it changes nothing). Altering the
changelog entry that was added when %ldconfig_scriptlets was added.

python37.spec

@@ -1091,15 +1091,6 @@ CheckPython optimized
 %endif # with tests
 
 
-# Remove this when F27 EOL
-%if %{with flatpackage}
-%ldconfig_scriptlets
-%else
-%ldconfig_scriptlets libs
-%ldconfig_scriptlets debug
-%endif
-
-
 %files
 %defattr(-, root, root)
 %license LICENSE
@@ -1587,7 +1578,7 @@ CheckPython optimized
 Resolves: rhbz#1532287
 
 * Wed Feb 14 2018 Miro Hrončok <mhroncok@redhat.com> - 3.7.0-0.8.b1
-- Readd ldconfig scriplets via macro
+- Readd ldconfig scriplets via macro (later removed on F28+ only)
 
 * Mon Feb 12 2018 Iryna Shcherbina <ishcherb@redhat.com> - 3.7.0-0.7.b1
 - Update to 3.7.0b1