remove matrix

Author: miniksa

build/pipelines/templates/pgo-merge-pgd-job.yml

@@ -10,8 +10,6 @@ jobs:
   variables:
     artifactsPath: $(Build.SourcesDirectory)\Artifacts
     pgoArtifactsPath: $(artifactsPath)\${{ parameters.pgoArtifact }}
-  strategy:
-    matrix: ${{ parameters.matrix }}
 
   steps:
   # The environment variable VCToolsInstallDir isn't defined on lab machines, so we need to retrieve it ourselves.