POSIX/t/time.t: Remove no longer necessary code

POSIX::strftime() now automatically handles the case where the locales of
LC_TIME and LC_CTYPE aren't the same.  So no need to explicitly do this
in the test file.

ext/POSIX/t/time.t

@@ -58,10 +58,6 @@ if (locales_enabled('LC_TIME')) {
     $orig_time_loc = setlocale(LC_TIME) || die "Cannot get time locale information:  $!";
     setlocale(LC_TIME, "C") || die "Cannot setlocale() to C:  $!";
 }
-if (locales_enabled('LC_CTYPE')) {
-    $orig_ctype_loc = setlocale(LC_CTYPE) || die "Cannot get ctype locale information:  $!";
-    setlocale(LC_CTYPE, "C") || die "Cannot setlocale() to C:  $!";
-}
 my $jan_16 = 15 * 86400;
 is(ctime($jan_16), strftime("%a %b %d %H:%M:%S %Y\n", CORE::localtime($jan_16)),
         "get ctime() equal to strftime()");
@@ -101,9 +97,6 @@ SKIP: {
 if (locales_enabled('LC_TIME')) {
     setlocale(LC_TIME, $orig_time_loc) || die "Cannot setlocale(LC_TIME) back to orig: $!";
 }
-if (locales_enabled('LC_CTYPE')) {
-    setlocale(LC_CTYPE, $orig_ctype_loc) || die "Cannot setlocale(LC_CTYPE) back to orig: $!";
-}
 
 # clock() seems to have different definitions of what it does between POSIX
 # and BSD.  Cygwin, Win32, and Linux lean the BSD way.  So, the tests just