Don't render bloated and scary inheritance graphs in documentation.

Just pretend that everything is shiny and following KISS principle.

Doxyfile

@@ -1671,7 +1671,7 @@ DOT_FONTPATH           =
 # indirect inheritance relations. Setting this tag to YES will force the
 # CLASS_DIAGRAMS tag to NO.
 
-CLASS_GRAPH            = YES
+CLASS_GRAPH            = NO
 
 # If the COLLABORATION_GRAPH and HAVE_DOT tags are set to YES then doxygen
 # will generate a graph for each documented class showing the direct and
@@ -1738,7 +1738,7 @@ CALLER_GRAPH           = NO
 # If the GRAPHICAL_HIERARCHY and HAVE_DOT tags are set to YES then doxygen
 # will generate a graphical hierarchy of all classes instead of a textual one.
 
-GRAPHICAL_HIERARCHY    = YES
+GRAPHICAL_HIERARCHY    = NO
 
 # If the DIRECTORY_GRAPH and HAVE_DOT tags are set to YES
 # then doxygen will show the dependencies a directory has on other directories