Bug 16845: Remove unused C4::Members::ModPrivacy

This subroutine is no longer in used and can be removed safely

Test plan:
  git grep ModPrivacy
should not return any occurrences.

Signed-off-by: Marc Véron <veron@veron.ch>

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>

Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
(cherry picked from commit 58138e93d7)
Signed-off-by: Frédéric Demians <f.demians@tamil.fr>

C4/Members.pm

@@ -1990,27 +1990,6 @@ sub GetBorrowersNamesAndLatestIssue {
     return $results;
 }
 
-=head2 ModPrivacy
-
-  my $success = ModPrivacy( $borrowernumber, $privacy );
-
-Update the privacy of a patron.
-
-return :
-true on success, false on failure
-
-=cut
-
-sub ModPrivacy {
-    my $borrowernumber = shift;
-    my $privacy = shift;
-    return unless defined $borrowernumber;
-    return unless $borrowernumber =~ /^\d+$/;
-
-    return ModMember( borrowernumber => $borrowernumber,
-                      privacy        => $privacy );
-}
-
 =head2 IssueSlip
 
   IssueSlip($branchcode, $borrowernumber, $quickslip)