[service/telemetry] delete deprecated config types (#9546)

**Description:**
Delete deprecated config types which have moved to
opentelemetry-go-contrib.

See #8620
for the first changes.

.chloggen/delete_deprecated_types.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: breaking
+
+# The name of the component, or a single word describing the area of concern, (e.g. otlpreceiver)
+component: service/telemetry
+
+# A brief description of the change.  Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: Delete generated_config types, use go.opentelemetry.io/contrib/config types instead
+
+# One or more tracking issues or pull requests related to the change
+issues: [9546]
+
+# (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: [api]

service/telemetry/config.go

@@ -7,6 +7,7 @@ import (
 	"fmt"
 	"time"
 
+	"go.opentelemetry.io/contrib/config"
 	"go.uber.org/zap/zapcore"
 
 	"go.opentelemetry.io/collector/config/configtelemetry"
@@ -123,7 +124,7 @@ type MetricsConfig struct {
 
 	// Readers allow configuration of metric readers to emit metrics to
 	// any number of supported backends.
-	Readers []MetricReader `mapstructure:"readers"`
+	Readers []config.MetricReader `mapstructure:"readers"`
 }
 
 // TracesConfig exposes the common Telemetry configuration for collector's internal spans.
@@ -135,7 +136,7 @@ type TracesConfig struct {
 	Propagators []string `mapstructure:"propagators"`
 	// Processors allow configuration of span processors to emit spans to
 	// any number of suported backends.
-	Processors []SpanProcessor `mapstructure:"processors"`
+	Processors []config.SpanProcessor `mapstructure:"processors"`
 }
 
 // Validate checks whether the current configuration is valid

service/telemetry/config_test.go

@@ -7,6 +7,7 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/assert"
+	"go.opentelemetry.io/contrib/config"
 
 	"go.opentelemetry.io/collector/config/configtelemetry"
 )
@@ -42,8 +43,8 @@ func TestLoadConfig(t *testing.T) {
 			cfg: &Config{
 				Metrics: MetricsConfig{
 					Level: configtelemetry.LevelBasic,
-					Readers: []MetricReader{
-						{Pull: &PullMetricReader{}},
+					Readers: []config.MetricReader{
+						{Pull: &config.PullMetricReader{}},
 					},
 				},
 			},