Remove ucx from common_reqs as an experiment.

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Signed-off-by: Brian J. Murrell <[email protected]>

site_scons/prereq_tools/base.py

@@ -523,8 +523,7 @@ def __init__(self, env, opts):
 
     def run_build(self, opts):
         """Build and dependencies"""
-        # argobots is not really needed by client but it's difficult to separate
-        common_reqs = ['ucx', 'ofi', 'hwloc', 'mercury', 'boost', 'uuid', 'crypto', 'protobufc',
+        common_reqs = ['ofi', 'hwloc', 'mercury', 'boost', 'uuid', 'crypto', 'protobufc',
                        'lz4', 'isal', 'isal_crypto']
         client_reqs = ['fuse', 'json-c', 'capstone', 'aio']
         server_reqs = ['argobots', 'pmdk', 'spdk', 'ipmctl']