fix(vim-shfmt): remove duplicate autocmd (now exists upstream)

vim-shfmt/shfmt.vim

@@ -1,9 +1,15 @@
+"""""""""""""""""""""""""""""""""
+"    shfmt-specific defaults    "
+" from webinstall.dev/vim-shfmt "
+"""""""""""""""""""""""""""""""""
+
+" Change Log
+"
+" 2023-03-06:
+"   - remove explicit file extension detection
+"     (this now works as expected by default)
+
+
 " 4 indents, Space between redirects, Indented case statements, Simplified
 let g:shfmt_extra_args = '-i 4 -sr -ci -s'
 let g:shfmt_fmt_on_save = 1
-
-augroup LocalShell
-    autocmd!
-
-    autocmd BufWritePre *.sh,*.bash Shfmt
-augroup END