Update perldelta with Richard Leach's suggestions

Co-authored-by: Richard Leach <[email protected]>

Author: thibaultduponchelle

pod/perldelta.pod

@@ -249,47 +249,6 @@ functions from enclosing functions may not be visible in the debugger.
 Note that calling C<eval EXPR> in a function unconditionally causes a function
 to reference its enclosing functions as it always has.
 
-=head2 Switch and Smart Match operator reinstated
-
-The "switch" feature and the smartmatch operator, C<~~>, were introduced in
-v5.10.  Their behavior was significantly changed in v5.10.1.  When the
-"experiment" system was added in v5.18.0, switch and smartmatch were
-retroactively declared experimental.  Over the years, proposals to fix or
-supplement the features have come and gone.
-
-They were deprecated in Perl v5.38.0 and scheduled for removal in Perl
-5.42.0, and entirely removed in Perl 5.41.3.
-
-After some discussion these have been re-instated.
-
-Using them no longer produces a deprecation warning.
-
-Switch itself still requires the C<switch> feature, which is enabled
-by default for feature bundles from v5.9.5 through to v5.34.  Switch
-remains disabled in feature bundles 5.35 and later, but can be
-separately enabled:
-
-  # no switch here
-  use v5.10;
-  # switch here
-  use v5.36;
-  # no switch here
-  use feature "switch";
-  # switch here
-
-Smart match now requires the C<smartmatch> feature, which is enabled
-by default and included in all feature bundles up to 5.40.  It is
-disabled for the 5.41 feature bundle and later, but can be separately
-enabled:
-
-  # smartmatch here
-  use v5.41;
-  # no smartmatch here
-  use feature "smartmatch";
-  # smartmatch here
-
-[L<GH #22752|https://github.com/Perl/perl5/issues/22752>]
-
 =head1 Deprecations
 
 XXX Any deprecated features, syntax, modules etc. should be listed here.