Update otelbench changelog and delete changelog fragments. (#702)

Co-authored-by: obltmachine <[email protected]>

Author: elastic-observability-automation[bot]

loadgen/cmd/otelbench/.chloggen/zmoog_feat_add-disable_pdata_reuse-config.yaml

@@ -4,6 +4,13 @@
 
 <!-- next version -->
 
+## v0.2.2
+
+### 💡 Enhancements 💡
+
+- `otelbench`: Add disable_pdata_reuse config to the loadgenreceiver. (#686)
+  Add a config that fixes panic when batchprocessor is used.
+
 ## v0.2.1
 
 ### 💡 Enhancements 💡