update selfhost runner logic1

Author: sandeepgupta12

.github/workflows/_linux-build.yml

@@ -113,13 +113,7 @@ jobs:
     outputs:
       docker-image: ${{ steps.calculate-docker-image.outputs.docker-image }}
       test-matrix: ${{ steps.filter.outputs.test-matrix }}
-
-    strategy:
-      matrix:
-        runner:
-          - { type: ppc64le, labels: '[self-hosted, linux, ppc64le]' }
-          - { type: default, labels: '[${{ inputs.runner_prefix }} ${{ inputs.runner }}]' }
-
+      
     steps:
 
       - name: Setup SSH (Click me for login details)

.github/workflows/ppc64le.yml

@@ -40,5 +40,5 @@ jobs:
       build-environment: linux-ppc64le-binary-manywheel
       docker-image-name: pytorch-ppc64le:ubi9.3
       #runner_prefix: '[self-hosted,'  # Example prefix
-      runner: 'ppc64le,'               # Example runner
+      runner: pytorch-runner              # Example runner
       #runner-ppc64le: '["self-hosted", "linux", "ppc64le"]'      # Specific architecture