[Doc] Cleanup ENABLE_METRICS_PREVIEW

README.md

@@ -13,15 +13,10 @@ The C++ [OpenTelemetry](https://opentelemetry.io/) client.
 | Signal | Status | Project |
 | ------- | ----------------------- | ------------------------------------------------------------------------ |
 | Traces | Public Release | N/A |
-| Metrics | Public Release [1] | N/A |
-| Logs | Experimental [2] | [Release Milestone](https:/open-telemetry/opentelemetry-cpp/milestone/18)|
-
-* [1]: The older metrics implementation (based on old
- specification) is now deprecated, and would be removed soon.
- This can be included in build by setting
- `ENABLE_METRICS_PREVIEW` preprocessor macro, and is included under
- `*/_metrics/*` directory.
-* [2]: The current Log Signal Implementation is Experimental, and will change as
+| Metrics | Public Release | N/A |
+| Logs | Experimental [1] | [Release Milestone](https:/open-telemetry/opentelemetry-cpp/milestone/18)|
+
+* [1]: The current Log Signal Implementation is Experimental, and will change as
  the current OpenTelemetry Log specification matures. The current
  implementation can be included in build by setting `ENABLE_LOGS_PREVIEW`
  preprocessor macro.

exporters/ostream/CMakeLists.txt

@@ -22,7 +22,6 @@ install(
  DIRECTORY include/opentelemetry/exporters/ostream
  DESTINATION include/opentelemetry/exporters
  PATTERN "*.h"
- PATTERN "metrics_exporter.h" EXCLUDE
  PATTERN "log_Exporter.h" EXCLUDE)
 
 if(BUILD_TESTING)