Testsuite - speed up by a minute.

Reasonable NFS systems do not need a minute to propagate changes.

testsuite/expect/test7.11

@@ -120,10 +120,6 @@ expect {
 	}
 }
 
-# Allow enough time for configuration file in NFS to be propagated
-# to all nodes of cluster
-exec sleep 60
-
 #
 # Test of srun help message
 #