Remove some outdated bullet points from kube-router docs

ARMv7 support is also present in Calico nowadays, so this is not
something to highlight anymore. Hairpinning is enabled by default since
quite some time, too.

See: 9800423 ("Enable hairpin for kube-router by default")
Signed-off-by: Tom Wieczorek <twieczorek@mirantis.com>

docs/networking.md

@@ -23,11 +23,9 @@ You can opt-out of having k0s manage the network setup and choose instead to use
 
 Kube-router is built into k0s, and so by default the distribution uses it for network provision. Kube-router uses the standard Linux networking stack and toolset, and you can set up CNI networking without any overlays by using BGP as the main mechanism for in-cluster networking.
 
-- Supports armv7 (among many other archs)
 - Uses bit less resources (~15%)
 - Does NOT support dual-stack (IPv4/IPv6) networking
 - Does NOT support Windows nodes
-- Does NOT activate hairpin mode by default
 
 ### Calico