Improve Smart Tech regex

Author: liviuconcioiu

Tests/fixtures/tv-4.yml

@@ -5004,7 +5004,7 @@
   device:
     type: tv
     brand: Smart Tech
-    model: 343FE2
+    model: ""
   os_family: GNU/Linux
   browser_family: Chrome
 -

regexes/device/mobiles.yml

@@ -35463,11 +35463,9 @@ Smart Kassel:
 
 # Smart Tech (https://www.smarttech-tv.com/)
 Smart Tech:
-  regex: 'Smarttech(?:[);/ ]|$)'
+  regex: 'Smarttech[;,]'
   device: 'tv'
-  models:
-    - regex: 'Smarttech;SmartTV;VS0([a-z0-9_ -]+);'
-      model: '$1'
+  model: ''
 
 # Colors or ColorsMobile (www.colors-mobile.com)
 Colors: