ValidateVersion() regression, simplified code

Author: JanPetterMG

src/UserAgentParser.php

@@ -134,17 +134,15 @@ private function blacklistCheck($input)
     private function validateVersion()
     {
         $this->blacklistCheck($this->version);
-        if (
-            !empty($this->version) &&
+        if (!empty($this->version) &&
             (
                 str_replace('+', '', filter_var($this->version, FILTER_SANITIZE_NUMBER_FLOAT, FILTER_FLAG_ALLOW_FRACTION)) !== $this->version ||
                 version_compare($this->version, '0.0.1', '>=') === false
             )
         ) {
             throw new VersionException("Invalid version format (`$this->version`). See http://semver.org/ for guidelines. In addition, dev/alpha/beta/rc tags is disallowed. See also " . self::RFC_README);
         }
-        $new = trim($this->version, '.0');
-        $this->version = empty($new) ? null : $new;
+        $this->version = trim($this->version, '.0');
         return true;
     }