docs: update help file

Author: franco-ruggeri

doc/codecompanion-spinner.txt

@@ -58,8 +58,6 @@ Ifyou use another plugin manager, make sure to call:
 Thanks yuhua99 <https://github.com/yuhua99> for providing the spinner logic
 <https://github.com/olimorris/codecompanion.nvim/discussions/640#discussioncomment-12866279>.
 
-trigger
-
 Generated by panvimdoc <https://github.com/kdheepak/panvimdoc>
 
 vim:tw=78:ts=8:noet:ft=help:norl: