reduce verbosity of doxygen graphs

Author: sy-c

doc/doxyfile.in

@@ -1455,14 +1455,14 @@ TEMPLATE_RELATIONS     = YES
 # file showing the direct and indirect include dependencies of the file with
 # other documented files.
 
-INCLUDE_GRAPH          = YES
+INCLUDE_GRAPH          = NO
 
 # If the ENABLE_PREPROCESSING, SEARCH_INCLUDES, INCLUDED_BY_GRAPH, and
 # HAVE_DOT tags are set to YES then doxygen will generate a graph for each
 # documented header file showing the documented files that directly or
 # indirectly include this file.
 
-INCLUDED_BY_GRAPH      = YES
+INCLUDED_BY_GRAPH      = NO
 
 # If the CALL_GRAPH and HAVE_DOT options are set to YES then
 # doxygen will generate a call dependency graph for every global function