update linter and fix lints (#284)

Signed-off-by: Hamza El-Saawy <hamzaelsaawy@microsoft.com>

pkg/etw/eventdescriptor.go

@@ -47,8 +47,6 @@ const (
 )
 
 // EventDescriptor represents various metadata for an ETW event.
-//
-//nolint:structcheck // task is currently unused
 type eventDescriptor struct {
 	id      uint16
 	version uint8

pkg/security/grantvmgroupaccess.go

@@ -21,7 +21,6 @@ type (
 	trusteeForm         uint32
 	trusteeType         uint32
 
-	//nolint:structcheck // structcheck thinks fields are unused, but the are used to pass data to OS
 	explicitAccess struct {
 		accessPermissions accessMask
 		accessMode        accessMode
@@ -29,7 +28,6 @@ type (
 		trustee           trustee
 	}
 
-	//nolint:structcheck,unused // structcheck thinks fields are unused, but the are used to pass data to OS
 	trustee struct {
 		multipleTrustee          *trustee
 		multipleTrusteeOperation int32