Fix: Reduce visibility (#714)

* Fix: Reduce visibility

* Fix: Remove unused methods

roave-bc-check.yaml

@@ -19,5 +19,11 @@ parameters:
     - '#\[BC\] REMOVED: Class Faker\\Extension\\NotInContainerException has been deleted#'
     - '#\[BC\] REMOVED: Method Faker\\Container\\Container\#getDefinitions\(\) was removed#'
     - '#\[BC\] REMOVED: Method Faker\\Container\\ContainerInterface\#getDefinitions\(\) was removed#'
+    - '#\[BC\] REMOVED: Method Faker\\Core\\DateTime\#getDefaultTimezone\(\) was removed#'
+    - '#\[BC\] REMOVED: Method Faker\\Core\\DateTime\#getTimestamp\(\) was removed#'
+    - '#\[BC\] REMOVED: Method Faker\\Core\\DateTime\#getTimestampDateTime\(\) was removed#'
+    - '#\[BC\] REMOVED: Method Faker\\Core\\DateTime\#resolveTimezone\(\) was removed#'
+    - '#\[BC\] REMOVED: Method Faker\\Core\\DateTime\#setDefaultTimezone\(\) was removed#'
+    - '#\[BC\] REMOVED: Method Faker\\Core\\DateTime\#setTimezone\(\) was removed#'
     - '#\[BC\] REMOVED: Method Faker\\Generator\#uuid3\(\) was removed#'
     - '#\[BC\] REMOVED: Method Faker\\Generator\#uuid\(\) was removed#'

src/Faker/Core/DateTime.php

@@ -30,7 +30,7 @@ final class DateTime implements DateTimeExtension, GeneratorAwareExtension
      *
      * @return false|int
      */
-    protected function getTimestamp($until = 'now')
+    private function getTimestamp($until = 'now')
     {
         if (is_numeric($until)) {
             return (int) $until;
@@ -48,22 +48,12 @@ protected function getTimestamp($until = 'now')
      *
      * @param int $timestamp the UNIX / POSIX-compatible timestamp
      */
-    protected function getTimestampDateTime(int $timestamp): \DateTime
+    private function getTimestampDateTime(int $timestamp): \DateTime
     {
         return new \DateTime('@' . $timestamp);
     }
 
-    protected function setDefaultTimezone(string $timezone = null): void
-    {
-        $this->defaultTimezone = $timezone;
-    }
-
-    protected function getDefaultTimezone(): ?string
-    {
-        return $this->defaultTimezone;
-    }
-
-    protected function resolveTimezone(?string $timezone): string
+    private function resolveTimezone(?string $timezone): string
     {
         if ($timezone !== null) {
             return $timezone;
@@ -75,7 +65,7 @@ protected function resolveTimezone(?string $timezone): string
     /**
      * Internal method to set the timezone on a DateTime object.
      */
-    protected function setTimezone(\DateTime $dateTime, ?string $timezone): \DateTime
+    private function setTimezone(\DateTime $dateTime, ?string $timezone): \DateTime
     {
         $timezone = $this->resolveTimezone($timezone);