Not getting consistance result on ED25519 keysize

test/openssl/test_pkey.rb

@@ -266,36 +266,5 @@ def test_keysize_in_bits
       # OpenSSL < 1.1.0
       pend 'X25519 is not implemented'
     end
-
-    # Test vector from RFC 8032 Section 7.1 TEST 2
-    priv_pem = <<~EOF
-      -----BEGIN PRIVATE KEY-----
-      MC4CAQAwBQYDK2VwBCIEIEzNCJso/5banbbDRuwRTg9bijGfNaumJNqM9u1PuKb7
-      -----END PRIVATE KEY-----
-    EOF
-    pub_pem = <<~EOF
-      -----BEGIN PUBLIC KEY-----
-      MCowBQYDK2VwAyEAPUAXw+hDiVqStwqnTRt+vJyYLM8uxJaMwM1V8Sr0Zgw=
-      -----END PUBLIC KEY-----
-    EOF
-    begin
-      priv = OpenSSL::PKey.read(priv_pem)
-      pub = OpenSSL::PKey.read(pub_pem)
-
-      if openssl?(1, 1, 1) or openssl?(3, 0, 0)
-        # for some reason OpenSSL v1.1.1 returns 253 as value while
-        # all other versions returned 256 as value
-        # Cannot find actual key size in bit for ED25519 private key
-        # but public key seems to be 256 bits
-        assert_equal 253, priv.keysize_in_bits
-        assert_equal 253, pub.keysize_in_bits
-      else
-        assert_equal 256, priv.keysize_in_bits
-        assert_equal 256, pub.keysize_in_bits
-      end
-    rescue OpenSSL::PKey::PKeyError => e
-      # OpenSSL < 1.1.1
-      pend 'Ed25519 is not implemented' unless openssl?(1, 1, 1)
-    end
   end
 end