[release-v0.50.x] Remove results annotations filtering

[tekton-robot]

This is an automated cherry-pick of #7108

/assign khrm

NONE

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In response to this:

This is an automated cherry-pick of #7108

/assign khrm

NONE

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[tekton-robot]

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

File	Old Coverage	New Coverage	Delta
pkg/reconciler/pipelinerun/pipelinerun.go	92.7%	91.8%	-0.9

[tekton-robot]

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

File	Old Coverage	New Coverage	Delta
pkg/reconciler/pipelinerun/pipelinerun.go	92.7%	91.8%	-0.9

[vdemeester]

/kind bug
/approve

[tekton-robot]

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[jerop]

/lgtm

[khrm]

@vdemeester When can we get a v0.50.x release with this fix?