[libc++] Enables TZDB tests.

With the timezone information available in the CI these tests can be
enabled again.

Fixes: #81654

Author: mordante

libcxx/test/std/time/time.zone/time.zone.db/time.zone.db.access/get_tzdb.pass.cpp

@@ -12,9 +12,6 @@
 // XFAIL: libcpp-has-no-incomplete-tzdb
 // XFAIL: availability-tzdb-missing
 
-// TODO TZDB (#81654) Enable tests
-// UNSUPPORTED: c++20, c++23, c++26
-
 // <chrono>
 
 // const tzdb& get_tzdb();
@@ -30,8 +27,6 @@ int main(int, const char**) {
 
   assert(!db.version.empty());
 
-  LIBCPP_ASSERT(!db.__rules.empty());
-
   assert(!db.zones.empty());
   assert(std::ranges::is_sorted(db.zones));
   assert(std::ranges::adjacent_find(db.zones) == db.zones.end()); // is unique?

libcxx/test/std/time/time.zone/time.zone.db/time.zone.db.access/get_tzdb_list.pass.cpp

@@ -12,9 +12,6 @@
 // XFAIL: libcpp-has-no-incomplete-tzdb
 // XFAIL: availability-tzdb-missing
 
-// TODO TZDB (#81654) Enable tests
-// UNSUPPORTED: c++20, c++23, c++26
-
 // <chrono>
 
 // const tzdb& get_tzdb_list();

libcxx/test/std/time/time.zone/time.zone.db/time.zone.db.list/front.pass.cpp

@@ -12,9 +12,6 @@
 // XFAIL: libcpp-has-no-incomplete-tzdb
 // XFAIL: availability-tzdb-missing
 
-// TODO TZDB (#81654) Enable tests
-// UNSUPPORTED: c++20, c++23, c++26
-
 // <chrono>
 //
 // class tzdb_list;

libcxx/test/std/time/time.zone/time.zone.db/time.zone.db.list/iterators.pass.cpp

@@ -12,9 +12,6 @@
 // XFAIL: libcpp-has-no-incomplete-tzdb
 // XFAIL: availability-tzdb-missing
 
-// TODO TZDB (#81654) Enable tests
-// UNSUPPORTED: c++20, c++23, c++26
-
 // <chrono>
 //
 // class tzdb_list;

libcxx/test/std/time/time.zone/time.zone.db/time.zone.db.remote/reload_tzdb.pass.cpp

@@ -12,9 +12,6 @@
 // XFAIL: libcpp-has-no-incomplete-tzdb
 // XFAIL: availability-tzdb-missing
 
-// TODO TZDB (#81654) Enable tests
-// UNSUPPORTED: c++20, c++23, c++26
-
 // <chrono>
 
 // Note there is no Standard way to change the remote database used.

libcxx/test/std/time/time.zone/time.zone.db/time.zone.db.remote/remote_version.pass.cpp

@@ -12,9 +12,6 @@
 // XFAIL: libcpp-has-no-incomplete-tzdb
 // XFAIL: availability-tzdb-missing
 
-// TODO TZDB (#81654) Enable tests
-// UNSUPPORTED: c++20, c++23, c++26
-
 // <chrono>
 
 // const string remote_version();

libcxx/test/std/time/time.zone/time.zone.link/time.zone.link.members/name.pass.cpp

@@ -12,9 +12,6 @@
 // XFAIL: libcpp-has-no-incomplete-tzdb
 // XFAIL: availability-tzdb-missing
 
-// TODO TZDB (#81654) Enable tests
-// UNSUPPORTED: c++20, c++23, c++26
-
 // <chrono>
 
 // class time_zone_link;

libcxx/test/std/time/time.zone/time.zone.link/time.zone.link.members/target.pass.cpp

@@ -12,9 +12,6 @@
 // XFAIL: libcpp-has-no-incomplete-tzdb
 // XFAIL: availability-tzdb-missing
 
-// TODO TZDB (#81654) Enable tests
-// UNSUPPORTED: c++20, c++23, c++26
-
 // <chrono>
 
 // class time_zone_link;

libcxx/test/std/time/time.zone/time.zone.link/time.zone.link.nonmembers/comparison.pass.cpp

@@ -12,9 +12,6 @@
 // XFAIL: libcpp-has-no-incomplete-tzdb
 // XFAIL: availability-tzdb-missing
 
-// TODO TZDB (#81654) Enable tests
-// UNSUPPORTED: c++20, c++23, c++26
-
 // <chrono>
 
 // bool operator==(const time_zone_link& x, const time_zone_link& y) noexcept;

libcxx/test/std/time/time.zone/time.zone.timezone/time.zone.members/name.pass.cpp

@@ -12,9 +12,6 @@
 // XFAIL: libcpp-has-no-incomplete-tzdb
 // XFAIL: availability-tzdb-missing
 
-// TODO TZDB (#81654) Enable tests
-// UNSUPPORTED: c++20, c++23, c++26
-
 // <chrono>
 
 // class time_zone;