Remove print when not finding taste-config

The print output could pollute other scripts that import this module

asn1_value_editor/standalone_editor.py

@@ -61,7 +61,7 @@ try:
     from vn import fromValueNotationToPySide, toASN1ValueNotation
     from ColorFormatter import ColorFormatter
 except:
-    print 'Missing TASTE modules: make sure the program taste-config is in your PATH'
+    #print 'Missing TASTE modules: make sure the program taste-config is in your PATH'
     usable = False
 
 #******************************************************************************