[chore] Remove link from deprecated/removed component ballastextension from CHANGELOG (#11102)

Signed-off-by: Bogdan Drutu <[email protected]>

Author: bogdandrutu

CHANGELOG.md

@@ -280,7 +280,7 @@ This release includes 2 very important breaking changes.
   - Stop doing most kinds of implicit type casting when resolving configuration values
   - Use the original string representation of configuration values if the ${} syntax is used in inline position
 
-- `confighttp`: Use `confighttp.ServerConfig` as part of zpagesextension. See [https://github.com/open-telemetry/opentelemetry-collector/blob/main/config/confighttp/README.md#server-configuration](server configuration) options. (#9368)
+- `confighttp`: Use `confighttp.ServerConfig` as part of zpagesextension. See [server configuration](https://github.com/open-telemetry/opentelemetry-collector/blob/main/config/confighttp/README.md#server-configuration) options. (#9368)
 
 ### 🧰 Bug fixes 🧰
 
@@ -2205,9 +2205,9 @@ There isn't a valid core binary for this release. Use v0.57.2 instead.
 - Deprecate global flag in `featuregates` (#5060)
 - Deprecate last funcs/structs in componenthelper (#5069)
 - Change structs in otlpgrpc to follow standard go encoding interfaces (#5062)
-  - Deprecate UnmarshalJSON[Traces|Metrics|Logs][Reques|Response] in favor of `UnmarshalJSON`.
-  - Deprecate [Traces|Metrics|Logs][Reques|Response].Marshal in favor of `MarshalProto`.
-  - Deprecate UnmarshalJSON[Traces|Metrics|Logs][Reques|Response] in favor of `UnmarshalProto`.
+  - Deprecate `UnmarshalJSON[Traces|Metrics|Logs][Reques|Response]` in favor of `UnmarshalJSON`.
+  - Deprecate `[Traces|Metrics|Logs][Reques|Response].Marshal` in favor of `MarshalProto`.
+  - Deprecate `UnmarshalJSON[Traces|Metrics|Logs][Reques|Response]` in favor of `UnmarshalProto`.
 - Deprecating following pdata methods/types following OTLP v0.15.0 upgrade (#5076):
       - InstrumentationLibrary is now InstrumentationScope
       - NewInstrumentationLibrary is now NewInstrumentationScope
@@ -2707,7 +2707,7 @@ This release is marked as "bad" since the metrics pipelines will produce bad dat
 
 - Remove Resize() from pdata slice APIs (#3675)
 - Remove the ballast allocation when `mem-ballast-size-mib` is set in command line (#3626)
-  - Use [`ballast extension`](./extension/ballastextension/README.md) to set memory ballast instead.
+  - Use `ballast extension` to set memory ballast instead.
 - Rename `DoubleDataPoint` to `NumberDataPoint` (#3633)
 - Remove `IntHistogram` (#3676)