Remove deprecated mqtrigger with kind fission (#2875)

* Remove deprecated mqtrigger with kind fission
* Remove unused deps

---------

Signed-off-by: Sanket Sudake <sanketsudake@gmail.com>

pkg/apis/core/v1/const.go

@@ -80,10 +80,6 @@ const (
 	PodInfoMount           = "/etc/podinfo"
 )
 
-const (
-	MessageQueueTypeKafka = "kafka"
-)
-
 const (
 	// FunctionReferenceFunctionName means that the function
 	// reference is simply by function name.

pkg/apis/core/v1/types.go

@@ -751,7 +751,7 @@ type (
 		// +optional
 		FunctionReference FunctionReference `json:"functionref"`
 
-		// Type of message queue (NATS, Kafka, AzureQueue)
+		// Type of message queue
 		// +optional
 		MessageQueueType MessageQueueType `json:"messageQueueType"`
 

pkg/apis/core/v1/validation.go

@@ -523,11 +523,11 @@ func (spec MessageQueueTriggerSpec) Validate() error {
 	if !validator.IsValidMessageQueue((string)(spec.MessageQueueType), spec.MqtKind) {
 		result = multierror.Append(result, MakeValidationErr(ErrorUnsupportedType, "MessageQueueTriggerSpec.MessageQueueType", spec.MessageQueueType, "not a supported message queue type"))
 	} else {
-		if !validator.IsValidTopic((string)(spec.MessageQueueType), spec.Topic, spec.MqtKind) {
+		if !validator.IsValidTopic(spec.MqtKind) {
 			result = multierror.Append(result, MakeValidationErr(ErrorInvalidValue, "MessageQueueTriggerSpec.Topic", spec.Topic, "not a valid topic"))
 		}
 
-		if len(spec.ResponseTopic) > 0 && !validator.IsValidTopic((string)(spec.MessageQueueType), spec.ResponseTopic, spec.MqtKind) {
+		if len(spec.ResponseTopic) > 0 && !validator.IsValidTopic(spec.MqtKind) {
 			result = multierror.Append(result, MakeValidationErr(ErrorInvalidValue, "MessageQueueTriggerSpec.ResponseTopic", spec.ResponseTopic, "not a valid topic"))
 		}
 	}

pkg/apis/core/v1/zz_generated.swagger_doc_generated.go

@@ -312,7 +312,7 @@ func (MessageQueueTriggerList) SwaggerDoc() map[string]string {
 var map_MessageQueueTriggerSpec = map[string]string{
 	"":                 "MessageQueueTriggerSpec defines a binding from a topic in a message queue to a function.",
 	"functionref":      "The reference to a function for message queue trigger to invoke with when receiving messages from subscribed topic.",
-	"messageQueueType": "Type of message queue (NATS, Kafka, AzureQueue)",
+	"messageQueueType": "Type of message queue",
 	"topic":            "Subscribed topic",
 	"respTopic":        "Topic for message queue trigger to sent response from function.",
 	"errorTopic":       "Topic to collect error response sent from function",