Drop pysnmp-lextudio from global-requirements

The dependency has been dropped from ironic in [0]. Also the comment
about pysnmp is no longer true, it is being maintained again and vitrage
is using it.

[0] https://review.opendev.org/c/openstack/ironic/+/982147

Signed-off-by: Dr. Jens Harbott <harbott@osism.tech>
Change-Id: I59857d930e4ac04a90d2e8e10c360b4f30fa1a13

Author: osfrickler

global-requirements.txt

@@ -135,7 +135,7 @@ pyOpenSSL  # Apache-2.0
 pyparsing  # MIT
 pyroute2!=0.5.4,!=0.5.5,!=0.7.1,!=0.9.1,!=0.9.2,!=0.9.3,!=0.9.4;sys_platform!='win32'  # Apache-2.0 (+ dual licensed GPL2)
 pysaml2!=4.0.3,!=4.0.4,!=4.0.5rc1,!=4.0.5,!=4.1.0,!=4.2.0,!=4.3.0,!=4.4.0,!=4.6.0  # Apache-2.0
-pysnmp-lextudio  # BSD
+pysnmp  # BSD
 pystache  # MIT
 # Only required for sasl/binary protocol
 python-binary-memcached  # MIT
@@ -483,11 +483,6 @@ jsonpath-rw  # Apache-2.0
 jsonpath-rw-ext  # Apache-2.0
 python-consul  # MIT License
 python-consul2  # MIT License
-# pysnmp library is not maintained since 4 years, it is
-# not recommended to use it, use its fork pysnmp-lextudio instead
-# in conjunction with its dependencies pyasn1-lextudio and
-# pyasn1-modules-lextudio
-pysnmp  # BSD
 simplejson  # MIT
 six  # MIT
 zake  # Apache-2.0

upper-constraints.txt

@@ -366,7 +366,6 @@ python-octaviaclient===3.13.0
 pysaml2===7.5.4
 requests-oauthlib===2.0.0
 oslo.reports===3.7.0
-pysnmp-lextudio===6.1.2
 bitmath===1.3.3.1
 ceilometermiddleware===3.10.0
 testrepository===0.0.22