CI: Remove custom meta-data to ci schedule for dependency analysis

This configuration is removed as the goal would be to ultimately use the
'pipeline_file/xyz.yml' metadata key/value instead of this manually set
'scheduled-build/dependency-analysis' meta-data key/value pair.

For more info see: Automattic/buildkite-ci#459
#issuecomment-2199589109

.buildkite/schedules/dependency-analysis.yml

@@ -9,9 +9,7 @@ agents:
 
 steps:
   - label: "dependency analysis"
-    # The meta-data added is used by Apps Metrics Prometheus collector to find the build.
     command: |
-      buildkite-agent meta-data set "scheduled-build" "dependency-analysis"
       echo "--- 📊 Analyzing"
       cp gradle.properties-example gradle.properties
       ./gradlew buildHealth