Resolve "Restarting the controller after devices are registered is throwing a panic"

Description

Related Issue

#251 (closed)

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.

controller/interfaces/device/device.go

@@ -51,18 +51,4 @@ type LoadedDevice struct {
 	// SBI indicates the southbound interface, which is used by this device as UUID.
 	SBI   string `json:"sbi"`
 	Model string `json:"model,omitempty" bson:"model,omitempty"`
-
-	convertFunc func(LoadedDevice) (Device, error)
-}
-
-// SetConvertFunction allows to set the LoadedDevice's convert function. This
-// function should take a LoadedDevice and returns a Device.
-func (ld *LoadedDevice) SetConvertFunction(cf func(LoadedDevice) (Device, error)) {
-	ld.convertFunc = cf
-}
-
-// ConvertToDevice calls the LoadedDevice's convert function and converts the
-// LoadedDevice into a Device.
-func (ld LoadedDevice) ConvertToDevice() (Device, error) {
-	return ld.convertFunc(ld)
 }