vimrc: add ultisnips,vim-snippets+rm vim-clang

.vim/vimrc

@@ -58,6 +58,8 @@ Plug 'junegunn/goyo.vim', { 'for': 'markdown' }
 Plug 'preservim/nerdcommenter'
 Plug 'airblade/vim-gitgutter'
 Plug 'LunarWatcher/auto-pairs'
+Plug 'SirVer/ultisnips', { 'on': [] }
+Plug 'honza/vim-snippets', { 'on': [] }
 
 Plug 'tpope/vim-surround'
 " fugitive.vim: A Git wrapper so awesome, it should be illegal
@@ -421,6 +423,14 @@ let g:vim_json_conceal = 0
 let g:markdown_syntax_conceal = 0
 
 
+""" ultisnips
+" If you want :UltiSnipsEdit to split your window.
+" let g:UltiSnipsEditSplit="vertical"
+let g:UltiSnipsExpandTrigger='<c-t>'
+" let g:UltiSnipsJumpForwardTrigger="<c-b>"
+" let g:UltiSnipsJumpBackwardTrigger="<c-z>"
+
+
 let g:git_messenger_close_on_cursor_moved = v:false
 let g:git_messenger_always_into_popup = v:true
 hi gitmessengerHash term=None guifg=#f0eaaa ctermfg=111
@@ -919,7 +929,10 @@ augroup async_plug_load
     autocmd!
     " these plugins take the longest to load, let's do it in a semi-non-blocking
     " fashion
-    autocmd CursorHold,CursorHoldI *  call plug#load('vim-clang', 'vim-speeddating')
+    " used to use CursorHold,CursorHoldI but I'm not sure if that didn't go
+    " off on *every* CursorHold, so this is the solution (perhaps not as async
+    " anymore)...
+    autocmd BufWinEnter *  call plug#load('vim-speeddating', 'ultisnips', 'vim-snippets')
     \| autocmd! async_plug_load
 augroup END