Update requirements for OSM installation in 03-installing-osm

Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>

03-installing-osm.md

@@ -5,7 +5,6 @@
 In order to install OSM, you will need, at least, a single server or VM with the following requirements:
 
 - RECOMMENDED: 4 CPUs, 16 GB RAM, 80GB disk and a single interface with Internet access
-- MINIMUM: 2 CPUs, 8 GB RAM, 50GB disk and a single interface with Internet access
 - Base image: Ubuntu22.04
   - [Ubuntu22.04 cloud image (64-bit variant required)](https://cloud-images.ubuntu.com/jammy/current/jammy-server-cloudimg-amd64-disk-kvm.img)
   - [Ubuntu22.04 server image (64-bit variant required)](http://releases.ubuntu.com/22.04/)