removing outdated mainpage

tools/rxdeps/mainpage.dox

@@ -3,45 +3,6 @@
 
 @htmlinclude manifest.html
 
-@b vizdeps provides a graphical view of the ROS package tree
-
-@section summary Summary
-Vizdeps provides a quick way to visualize package dependencies and status. 
-
-It will generate a colored graph of the packages allowing quick visual inspection
-of an individual package status as well as the statuses of closely related packages.  
-
-Common usages are to find out the status of a specific package and all its dependents 
-use '''./vizdeps -s --target=PACKAGE_NAME''' 
-
-Or if you want to know what licenses a package and it's dependents use.  Use the command 
-'''vizdeps -l --target=PACKAGE_NAME'''
-
-
-The focused view can also be useful when migrating or changing a package to determine 
-how much needs to change and which packages will be effected.  
-
-@section usage Commandline Usage
-
-\verbatim
-Usage: vizdeps [options]
-Options:
-  -h, --help            show this help message and exit
-  -r, --rosmake         color by rosmakeall results
-  -s, --review          color by review status
-  -l, --license         color by license type
-  -v                    don't deduplicate dependencies
-  -q                    quiet (remove links to common packages)
-  --color=FILENAME      use color file
-  --target='PKG NAMES LIST'
-                        target packages
-  --exclude='PKG NAMES LIST'
-                        exclude packages
-\endverbatim
-
-@section Screenshot
-An example view of ROS coloring by package status.
-\image html screenshot_vizdeps.png 
  */