cts: remove old parameter from README

Signed-off-by: Jonas Gava <[email protected]>

Author: jfgava

src/cts/README.md

@@ -61,8 +61,7 @@ clock_tree_synthesis
     [-num_static_layers]
     [-sink_clustering_buffer]
     [-obstruction_aware]
-    [-apply_ndr]
-    [-ndr_strategy strategy]
+    [-apply_ndr strategy]
     [-insertion_delay]
     [-dont_use_dummy_load]
     [-sink_buffer_max_cap_derate derate_value]