Resolve "Receiver map is not updated correctly for key exchange"

Description

Related Issue

Motivation and Context

How Has This Been Tested?

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

Closes #43 (closed)

goKMS/kms/akmsInterface/server/server.go

@@ -97,6 +97,9 @@ func ksaReqHandler(eventBus *event.EventBus, receiver *receiver.Receiver, genera
 
 		select {
 		case <-receiverChan:
+			if err := receiver.RemoveReceiver(pathId); err != nil {
+				logrus.Errorf("Failed removing receiver for pathId: %s ; err: %v", pathId, err)
+			}
 		case <-time.After(20 * time.Second):
 			if err := receiver.RemoveReceiver(pathId); err != nil {
 				logrus.Errorf("Failed removing receiver for pathId: %s ; err: %v", pathId, err)