revert(psp): Remove PSP code for 1.0.0

[ksubrmnn]

Signed-off-by: Kalya Subramanian [email protected]

Description:
Removes PSP code.

PSP was deprecated in OSM in 0.10.0 with removal scheduled for 1.0.0

Fixes #4122

Testing done:

Affected area:

Functional Area
New Functionality	[ ]
CI System	[ ]
CLI Tool	[ ]
Certificate Management	[ ]
Control Plane	[ ]
Demo	[ ]
Documentation	[ ]
Egress	[ ]
Ingress	[ ]
Install	[X]
Networking	[ ]
Observability	[ ]
Performance	[ ]
SMI Policy	[ ]
Security	[ ]
Sidecar Injection	[ ]
Tests	[ ]
Upgrade	[ ]
Other	[ ]

Please answer the following questions with yes/no.

1. Does this change contain code from or inspired by another project?
   • Did you notify the maintainers and provide attribution?
     No
2. Is this a breaking change?
   No

[codecov-commenter]

Codecov Report

Merging #4163 (f10badc) into main (92c7760) will increase coverage by 0.07%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #4163      +/-   ##
==========================================
+ Coverage   69.79%   69.86%   +0.07%     
==========================================
  Files         211      212       +1     
  Lines       11463    11583     +120     
==========================================
+ Hits         8001     8093      +92     
- Misses       3409     3437      +28     
  Partials       53       53              

Flag	Coverage Δ
unittests	69.86% <ø> (+0.07%)	⬆️

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

Impacted Files	Coverage Δ
pkg/reconciler/mutating_webhook_handler.go	88.57% <0.00%> (-6.03%)	⬇️
pkg/reconciler/crd_handler.go	85.00% <0.00%> (-5.25%)	⬇️
pkg/validator/patch.go	95.40% <0.00%> (-0.60%)	⬇️
pkg/envoy/ads/stream.go	10.55% <0.00%> (-0.17%)	⬇️
pkg/validator/server.go	76.28% <0.00%> (-0.06%)	⬇️
pkg/catalog/fake.go	34.37% <0.00%> (ø)
pkg/envoy/ads/jobs.go	0.00% <0.00%> (ø)
pkg/errcode/errcode.go	100.00% <0.00%> (ø)
pkg/reconciler/types.go	0.00% <0.00%> (ø)
pkg/envoy/ads/profile.go	87.50% <0.00%> (ø)
... and 7 more

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