remove unused filter processor (#5805)

Author: atoulme

cmd/otelcol/config/collector/fargate_config.yaml

@@ -1,10 +1,5 @@
 # This collector config file is designed for use within an ECS task.
 # The collector should run in a sidecar container within an ECS task.
-config_sources:
-  env:
-    defaults:
-      METRICS_TO_EXCLUDE: []
-
 extensions:
   health_check:
     endpoint: 0.0.0.0:13133
@@ -73,14 +68,6 @@ processors:
   resourcedetection:
     detectors: [ecs]
     override: false
-  # Enables the filter processor with example settings
-  # Full configuration here: https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/processor/filterprocessor
-  # NOTE: These settings need to be change when using this processor
-  filter/1:
-    metrics:
-      exclude:
-        match_type: regexp
-        metric_names: ${env:METRICS_TO_EXCLUDE}
   # Optional: The following processor can be used to add a default "deployment.environment" attribute to the logs and
   # traces when it's not populated by instrumentation libraries.
   # If enabled, make sure to enable this processor in the pipeline below.

cmd/otelcol/fips/config/fargate_config.yaml

@@ -1,10 +1,5 @@
 # This collector config file is designed for use within an ECS task.
 # The collector should run in a sidecar container within an ECS task.
-config_sources:
-  env:
-    defaults:
-      METRICS_TO_EXCLUDE: []
-
 extensions:
   health_check:
     endpoint: 0.0.0.0:13133
@@ -70,14 +65,7 @@ processors:
   resourcedetection:
     detectors: [ecs]
     override: false
-  # Enables the filter processor with example settings
-  # Full configuration here: https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/processor/filterprocessor
-  # NOTE: These settings need to be change when using this processor
-  filter/1:
-    metrics:
-      exclude:
-        match_type: regexp
-        metric_names: ${env:METRICS_TO_EXCLUDE}
+
   # Optional: The following processor can be used to add a default "deployment.environment" attribute to the logs and
   # traces when it's not populated by instrumentation libraries.
   # If enabled, make sure to enable this processor in the pipeline below.

deployments/fargate/README.md

@@ -53,8 +53,7 @@ In summary, the default Collector container definition does the following:
 - Sets the realm using environment variable `SPLUNK_REALM`.
 - Sets the default configuration file path using environment variable `SPLUNK_CONFIG`.
 
-Assign a stringified array of metrics you want excluded to environment variable
-`METRICS_TO_EXCLUDE`. You can set the memory limit for the memory limiter processor using
+You can set the memory limit for the memory limiter processor using
 environment variable `SPLUNK_MEMORY_LIMIT_MIB`. The default memory limit is 512 MiB. For
 more information about the memory limiter processor, see
 [here](https://github.com/open-telemetry/opentelemetry-collector/blob/main/processor/memorylimiterprocessor/README.md)