minor #36064 [Uid] remove Uuid::getVariant() (nicolas-grekas)

This PR was merged into the 5.1-dev branch.

Discussion
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[Uid] remove Uuid::getVariant()

| Q             | A
| ------------- | ---
| Branch?       | master
| Bug fix?      | no
| New feature?  | no
| Deprecations? | no
| Tickets       | -
| License       | MIT
| Doc PR        | -

Let's simplify the API. One less concept to grasp.
I think there are no use cases for variants in modern tech, check:
https://en.wikipedia.org/wiki/Universally_unique_identifier#Variants

Commits
-------

49efe9a [Uid] remove Uuid::getVariant()

src/Symfony/Component/Uid/Tests/UuidTest.php

@@ -132,7 +132,6 @@ public function testExtraMethods()
     {
         $uuid = new Uuid(self::A_UUID_V1);
 
-        $this->assertSame(Uuid::VARIANT_DCE, $uuid->getVariant());
         $this->assertSame(1583245966.746458, $uuid->getTime());
         $this->assertSame('3499710062d0', $uuid->getMac());
         $this->assertSame(self::A_UUID_V1, (string) $uuid);

src/Symfony/Component/Uid/Uuid.php

@@ -23,11 +23,6 @@ class Uuid implements \JsonSerializable
     public const TYPE_4 = UUID_TYPE_RANDOM;
     public const TYPE_5 = UUID_TYPE_SHA1;
 
-    public const VARIANT_NCS = UUID_VARIANT_NCS;
-    public const VARIANT_DCE = UUID_VARIANT_DCE;
-    public const VARIANT_MICROSOFT = UUID_VARIANT_MICROSOFT;
-    public const VARIANT_OTHER = UUID_VARIANT_OTHER;
-
     // https://tools.ietf.org/html/rfc4122#section-4.1.4
     // 0x01b21dd213814000 is the number of 100-ns intervals between the
     // UUID epoch 1582-10-15 00:00:00 and the Unix epoch 1970-01-01 00:00:00.
@@ -113,11 +108,6 @@ public function getType(): int
         return uuid_type($this->uuid);
     }
 
-    public function getVariant(): int
-    {
-        return uuid_variant($this->uuid);
-    }
-
     public function getTime(): float
     {
         if (self::TYPE_1 !== $t = uuid_type($this->uuid)) {