Revert "Refactor waiting loop to use resourceVersion

[dsimansk]

Description

Per subject revert PR#1301

/assign @rhuss

[knative-metrics-robot]

The following is the coverage report on the affected files.
Say /test pull-knative-client-go-coverage to re-run this coverage report

File	Old Coverage	New Coverage	Delta
pkg/eventing/v1/client.go	86.0%	85.8%	-0.1
pkg/serving/v1/client.go	69.0%	69.3%	0.3
pkg/wait/wait_for_ready.go	81.0%	76.1%	-4.9

[codecov]

Codecov Report

Merging #1321 (14d7cbc) into main (be8f246) will decrease coverage by 0.06%.
The diff coverage is 52.94%.

@@            Coverage Diff             @@
##             main    #1321      +/-   ##
==========================================
- Coverage   73.04%   72.97%   -0.07%     
==========================================
  Files         160      160              
  Lines        8161     8151      -10     
==========================================
- Hits         5961     5948      -13     
- Misses       1473     1476       +3     
  Partials      727      727              

Impacted Files	Coverage Δ
pkg/wait/poll_watcher.go	55.88% <0.00%> (+0.80%)	⬆️
pkg/serving/v1/client.go	57.60% <47.36%> (+1.32%)	⬆️
pkg/eventing/v1/client.go	79.16% <71.42%> (-0.18%)	⬇️
pkg/wait/wait_for_ready.go	66.34% <80.00%> (-7.34%)	⬇️
pkg/wait/test_wait_helper.go	95.00% <0.00%> (-5.00%)	⬇️

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[rhuss]

/lgtm
/approve

[knative-prow-robot]

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This pull-request has been approved by: rhuss

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