removed outdated information from readme

README.md

@@ -1,15 +1,3 @@
 # VINS-Mono
 For the original VINS-Mono package README, check the [README_original.md](./README_original.md) file.
 
-## Installation
-* Run the ``installation/install.sh`` script.
-* See [vio_core](https://mrs.felk.cvut.cz/gitlab/visual-localization/vio_core) for installation of related packages and example tmux scripts.
-
-## Changes from the original VINS-Mono repository
-* using `/UAV_NAME/` namespace for node names, topic names, and TF frames
-* flipped the published TF tree to be compatible with the [MRS system TF tree](https://ctu-mrs.github.io/docs/system/frames_of_reference.html)
-* custom configs and launch files
-
-## Simulation filter
-* Old Gazebo had an issue, when some of the messages had same time stamp which caused a lot of issues. Here is a link to a node on the incoming messages https://mrs.felk.cvut.cz/gitlab/visual-localization/simulation_filter
-* Test if still happens in the newer Gazebo version