Remove out-of-date test constraint on paramiko.

ci_complete

changelogs/fragments/ansible-test-paramiko-constraint.yml

@@ -0,0 +1,2 @@
+bugfixes:
+    - ansible-test - Remove out-of-date constraint on installing paramiko versions 2.5.0 or later in tests.

test/lib/ansible_test/_data/requirements/constraints.txt

@@ -14,7 +14,6 @@ pycrypto >= 2.6 # Need features found in 2.6 and greater
 ncclient >= 0.5.2 # Need features added in 0.5.2 and greater
 idna < 2.6, >= 2.5 # linode requires idna < 2.9, >= 2.5, requests requires idna < 2.6, but cryptography will cause the latest version to be installed instead
 paramiko < 2.4.0 ; python_version < '2.7' # paramiko 2.4.0 drops support for python 2.6
-paramiko < 2.5.0 ; python_version >= '2.7' # paramiko 2.5.0 requires cryptography 2.5.0+
 pytest < 3.3.0 ; python_version < '2.7' # pytest 3.3.0 drops support for python 2.6
 pytest < 5.0.0 ; python_version == '2.7' # pytest 5.0.0 and later will no longer support python 2.7
 pytest-forked < 1.0.2 ; python_version < '2.7' # pytest-forked 1.0.2 and later require python 2.7 or later