Prune changelogs after 8.8.2 release

docs/changelog/96243.yaml

@@ -1,5 +0,0 @@
-pr: 96243
-summary: Support dotted field notations in the reroute processor
-area: Ingest Node
-type: bug
-issues: []

docs/changelog/96251.yaml

@@ -1,5 +0,0 @@
-pr: 96251
-summary: Avoiding running IO on scheduler thread in `ResourceWatcherService`
-area: Watcher
-type: bug
-issues: []

docs/changelog/96540.yaml

@@ -1,6 +0,0 @@
-pr: 96540
-summary: Fix translation of queries involving Version vals
-area: SQL
-type: bug
-issues:
- - 96509

docs/changelog/96551.yaml

@@ -1,5 +0,0 @@
-pr: 96551
-summary: Make cluster health API cancellable
-area: Distributed
-type: bug
-issues: []

docs/changelog/96606.yaml

@@ -1,6 +0,0 @@
-pr: 96606
-summary: The get data stream api incorrectly prints warning log for upgraded tsdb
-  data streams
-area: TSDB
-type: bug
-issues: []

docs/changelog/96668.yaml

@@ -1,6 +0,0 @@
-pr: 96668
-summary: Fix iteration of empty percentiles throwing Null Pointer Exception
-area: Aggregations
-type: bug
-issues:
- - 96626

docs/changelog/96738.yaml

@@ -1,5 +0,0 @@
-pr: 96738
-summary: Ensure NLP model inference queue is always cleared after shutdown or failure
-area: Machine Learning
-type: bug
-issues: []

docs/changelog/96782.yaml

@@ -1,5 +0,0 @@
-pr: 96782
-summary: Increase concurrent request of opening point-in-time
-area: Search
-type: bug
-issues: []

docs/changelog/96785.yaml

@@ -1,6 +0,0 @@
-pr: 96785
-summary: Adding null check to fix potential NPE
-area: Transform
-type: enhancement
-issues:
-  - 96781

docs/changelog/96821.yaml

@@ -1,6 +0,0 @@
-pr: 96821
-summary: Change rollup thread pool settings
-area: TSDB
-type: enhancement
-issues:
- - 96758

docs/changelog/96843.yaml

@@ -1,6 +0,0 @@
-pr: 96843
-summary: Uses `ClusterSettings` instead of Node `Settings` in `HealthMetadataService`
-area: Health
-type: bug
-issues:
- - 96219