chore: remove now unneeded version parse error

Author: carlmontanari

api/v1/srl_version.go

@@ -5,14 +5,10 @@
 package v1
 
 import (
-	"errors"
 	"regexp"
 	"strings"
 )
 
-// ErrVersionParse is an error which is raised when srlinux version is failed to parse.
-var ErrVersionParse = errors.New("version parsing failed")
-
 // SrlVersion represents an sr linux version as a set of fields.
 type SrlVersion struct {
 	Major  string `json:"major,omitempty"`