Remove header from files report

Only printed by cbi-tree.

Signed-off-by: John Pennycook <john.pennycook@intel.com>

Author: Pennycook

codebasin/report.py

@@ -789,9 +789,6 @@ def files(
                 setmap[platform] += node.num_lines
         tree.insert(f, setmap)
 
-    print("", file=stream)
-    print(_heading("Files", stream), file=stream)
-
     # Print a legend.
     legend = []
     legend += ["Legend:"]