extract_action_strings: Don't use datetime

The datetime code since the last commmit is no longer compatible
with older distros (Mint 21.x).

It's also not needed, the info is in the git tree.

Author: clefebvre

data/nemo-actions/extract_action_strings

@@ -2,7 +2,6 @@
 
 import os
 import glob
-import datetime
 import sys
 import codecs
 from gi.repository import GLib
@@ -16,14 +15,13 @@ class Main:
         else:
             action_files = glob.glob(os.path.join(os.getcwd(), "*.nemo_action.in"))
         if len(action_files) > 0:
-            dt = datetime.datetime
             outstring = """
 '''
                 This is a dummy file for translating Nemo Action files
 
-                It was generated by the extract_action_strings script on %s UTC.
+                It was generated by the extract_action_strings script.
 '''
-                """ % (dt.now(datetime.UTC))
+                """
             outstring += "\n"
             for fn in action_files:
                 keyfile = GLib.KeyFile.new()