Remove rlp watcher for gateway rlps

[eguzki]

This even mapper for RLP's targeting a gateway is no longer necessary. When a RLP targeting a Gateway is updated, all rate limit required resources are updated correcly

[codecov]

Codecov Report

Merging #242 (60d8195) into main (aa05f01) will increase coverage by 0.02%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main     #242      +/-   ##
==========================================
+ Coverage   62.96%   62.99%   +0.02%     
==========================================
  Files          33       32       -1     
  Lines        3224     3186      -38     
==========================================
- Hits         2030     2007      -23     
+ Misses       1014     1002      -12     
+ Partials      180      177       -3     

Flag	Coverage Δ
integration	68.15% <ø> (+0.18%)	⬆️
unit	58.41% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Components	Coverage Δ
api/v1beta1 (u)	∅ <ø> (∅)
pkg/common (u)	76.99% <ø> (ø)
pkg/istio (u)	29.69% <ø> (ø)
pkg/log (u)	31.81% <ø> (ø)
pkg/reconcilers (u)	33.68% <ø> (ø)
pkg/rlptools (u)	57.63% <ø> (ø)
controllers (i)	68.15% <ø> (+0.18%)	⬆️

Files Changed	Coverage Δ
controllers/ratelimitpolicy_controller.go	66.42% <ø> (-1.36%)	⬇️

... and 5 files with indirect coverage changes

[guicassolato]

What about when the Gateway is modified (e.g. new listener added)?

[eguzki]

That change will be picked by this watcher, which is still there.

		Watches(
			&source.Kind{Type: &gatewayapiv1beta1.Gateway{}},
			handler.EnqueueRequestsFromMapFunc(gatewayEventMapper.MapToRateLimitPolicy),
		).