[service] fix proctelemetry registration bug (open-telemetry#11093)

This bug caused proctelemetry metrics to not be registered if a user
configured the Collector's internal telemetry via `readers` only and
disabled `address`. The check in the `if` statement is no longer needed
since a no-op meter provider will be configured unless the telemetry
level is set.

Mentioned in open-telemetry#10919

---------

Signed-off-by: Alex Boten <223565+codeboten@users.noreply.github.com>

.chloggen/codeboten_fix-bug.yaml

@@ -0,0 +1,25 @@
+# Use this changelog template to create an entry for release notes.
+
+# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
+change_type: bug_fix
+
+# The name of the component, or a single word describing the area of concern, (e.g. otlpreceiver)
+component: service
+
+# A brief description of the change.  Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: Ensure process telemetry is registered when internal telemetry is configured with readers instead of an address.
+
+# One or more tracking issues or pull requests related to the change
+issues: [11093]
+
+# (Optional) One or more lines of additional information to render under the primary note.
+# These lines will be padded with 2 spaces and then inserted directly into the document.
+# Use pipe (|) for multiline entries.
+subtext:
+
+# Optional: The change log or logs in which this entry should be included.
+# e.g. '[user]' or '[user, api]'
+# Include 'user' if the change is relevant to end users.
+# Include 'api' if there is a change to a library API.
+# Default: '[user]'
+change_logs: []

exporter/otlpexporter/go.mod

@@ -36,7 +36,6 @@ require (
 	github.com/gogo/protobuf v1.3.2 // indirect
 	github.com/golang/snappy v0.0.4 // indirect
 	github.com/google/uuid v1.6.0 // indirect
-	github.com/grpc-ecosystem/grpc-gateway/v2 v2.22.0 // indirect
 	github.com/hashicorp/go-version v1.7.0 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/klauspost/compress v1.17.9 // indirect
@@ -68,31 +67,17 @@ require (
 	go.opentelemetry.io/collector/pdata/pprofile v0.109.0 // indirect
 	go.opentelemetry.io/collector/receiver v0.109.0 // indirect
 	go.opentelemetry.io/collector/receiver/receiverprofiles v0.109.0 // indirect
-	go.opentelemetry.io/contrib/config v0.9.0 // indirect
 	go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.54.0 // indirect
 	go.opentelemetry.io/otel v1.30.0 // indirect
-	go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp v0.5.0 // indirect
-	go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc v1.29.0 // indirect
-	go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp v1.29.0 // indirect
-	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.29.0 // indirect
-	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.29.0 // indirect
-	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.29.0 // indirect
 	go.opentelemetry.io/otel/exporters/prometheus v0.52.0 // indirect
-	go.opentelemetry.io/otel/exporters/stdout/stdoutlog v0.5.0 // indirect
-	go.opentelemetry.io/otel/exporters/stdout/stdoutmetric v1.29.0 // indirect
-	go.opentelemetry.io/otel/exporters/stdout/stdouttrace v1.29.0 // indirect
-	go.opentelemetry.io/otel/log v0.5.0 // indirect
 	go.opentelemetry.io/otel/metric v1.30.0 // indirect
 	go.opentelemetry.io/otel/sdk v1.30.0 // indirect
-	go.opentelemetry.io/otel/sdk/log v0.5.0 // indirect
 	go.opentelemetry.io/otel/sdk/metric v1.30.0 // indirect
 	go.opentelemetry.io/otel/trace v1.30.0 // indirect
-	go.opentelemetry.io/proto/otlp v1.3.1 // indirect
 	go.uber.org/multierr v1.11.0 // indirect
 	golang.org/x/net v0.28.0 // indirect
 	golang.org/x/sys v0.25.0 // indirect
 	golang.org/x/text v0.17.0 // indirect
-	google.golang.org/genproto/googleapis/api v0.0.0-20240822170219-fc7c04adadcd // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )