simplify check for krbV module

builder/kojid

@@ -5782,7 +5782,7 @@ if __name__ == "__main__":
             quit("Error: Unable to log in. Bad credentials?")
         except xmlrpclib.ProtocolError:
             quit("Error: Unable to connect to server %s" % (options.server))
-    elif krbV and 'krbV' in sys.modules:
+    elif krbV:
         krb_principal = options.krb_principal
         if krb_principal is None:
             krb_principal = options.host_principal_format % socket.getfqdn()

util/koji-gc

@@ -345,7 +345,7 @@ def ensure_connection(session):
         warn(_("WARNING: The server is at API version %d and the client is at %d" % (ret, koji.API_VERSION)))
 
 def has_krb_creds():
-    if krbV is None or 'krbV' not in sys.modules:
+    if krbV is None:
         return False
     try:
         ctx = krbV.default_context()

util/koji-shadow

@@ -320,7 +320,7 @@ def activate_session(session):
     elif options.user:
         #authenticate using user/password
         session.login()
-    elif krbV and 'krbV' in sys.modules:
+    elif krbV:
         try:
             if options.keytab and options.principal:
                 session.krb_login(principal=options.principal, keytab=options.keytab, proxyuser=options.runas)

vm/kojivmd

@@ -1099,7 +1099,7 @@ if __name__ == "__main__":
             quit("Error: Unable to log in. Bad credentials?")
         except xmlrpclib.ProtocolError:
             quit("Error: Unable to connect to server %s" % (options.server))
-    elif krbV and 'krbV' in sys.modules:
+    elif krbV:
         krb_principal = options.krb_principal
         if krb_principal is None:
             krb_principal = options.host_principal_format % socket.getfqdn()