Remove one badge (open-telemetry#13277)

Author: trask

.clomonitor.yml

@@ -1,3 +1,6 @@
+# see https://github.com/cncf/clomonitor/blob/main/docs/checks.md#exemptions
 exemptions:
   - check: artifacthub_badge
     reason: "Artifact Hub doesn't support Java packages"
+  - check: openssf_badge
+    reason: "ETOOMANYBADGES, but the work has been done: https://www.bestpractices.dev/projects/9977"

README.md

@@ -2,7 +2,6 @@
 
 [![Release](https://img.shields.io/github/v/release/open-telemetry/opentelemetry-java-instrumentation?include_prereleases&style=)](https://github.com/open-telemetry/opentelemetry-java-instrumentation/releases/)
 [![OpenSSF Scorecard](https://api.scorecard.dev/projects/github.com/open-telemetry/opentelemetry-java-instrumentation/badge)](https://scorecard.dev/viewer/?uri=github.com/open-telemetry/opentelemetry-java-instrumentation)
-[![OpenSSF Best Practices](https://www.bestpractices.dev/projects/9977/badge)](https://www.bestpractices.dev/projects/9977)
 [![Slack](https://img.shields.io/badge/slack-@cncf/otel--java-blue.svg?logo=slack)](https://cloud-native.slack.com/archives/C014L2KCTE3)
 
 * [About](#about)