Remove Validate() from Config interfaces and make it optional interface (#6544)

The reason is to remove every Config to include the "config.*Settings" structs, which is one of the functionality they offer.

Signed-off-by: Bogdan Drutu <bogdandrutu@gmail.com>

Signed-off-by: Bogdan Drutu <bogdandrutu@gmail.com>

.chloggen/rmvalidate.yaml

@@ -0,0 +1,11 @@
+# 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: component
+
+# A brief description of the change.  Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: Remove `Validate()` from component.*Config interfaces and make it optional interface
+
+# One or more tracking issues or pull requests related to the change
+issues: [6544]

component/config.go

@@ -20,8 +20,6 @@ import (
 
 type Config interface {
 	identifiable
-	// Deprecated: [v0.65.0] use component.ValidateConfig.
-	Validate() error
 
 	privateConfig()
 }

config/exporter.go

@@ -44,8 +44,3 @@ func (es *ExporterSettings) ID() component.ID {
 func (es *ExporterSettings) SetIDName(idName string) {
 	es.id = component.NewIDWithName(es.id.Type(), idName)
 }
-
-// Deprecated: [v0.65.0] use component.ValidateConfig.
-func (es *ExporterSettings) Validate() error {
-	return nil
-}

config/extension.go

@@ -44,8 +44,3 @@ func (es *ExtensionSettings) ID() component.ID {
 func (es *ExtensionSettings) SetIDName(idName string) {
 	es.id = component.NewIDWithName(es.id.Type(), idName)
 }
-
-// Deprecated: [v0.65.0] use component.ValidateConfig.
-func (es *ExtensionSettings) Validate() error {
-	return nil
-}

config/processor.go

@@ -44,8 +44,3 @@ func (ps *ProcessorSettings) ID() component.ID {
 func (ps *ProcessorSettings) SetIDName(idName string) {
 	ps.id = component.NewIDWithName(ps.id.Type(), idName)
 }
-
-// Deprecated: [v0.65.0] use component.ValidateConfig.
-func (ps *ProcessorSettings) Validate() error {
-	return nil
-}

config/receiver.go

@@ -44,8 +44,3 @@ func (rs *ReceiverSettings) ID() component.ID {
 func (rs *ReceiverSettings) SetIDName(idName string) {
 	rs.id = component.NewIDWithName(rs.id.Type(), idName)
 }
-
-// Deprecated: [v0.65.0] Not needed anymore since the Validate() will be moved from Config interface to the optional ConfigValidator interface.
-func (rs *ReceiverSettings) Validate() error {
-	return nil
-}