Remove trailing whitespace

.vimrc

@@ -1,4 +1,5 @@
-" General config _______________________ 
+" General config ______________________
+"
 
 set nocompatible
 
@@ -255,10 +256,10 @@ let g:fzf_action = {
 
 " Autocompletion
 
-inoremap <silent><expr><C-j> pumvisible() ? "\<C-n>" :
+inoremap <silent><expr><c-j> pumvisible() ? "\<c-n>" :
   \ coc#refresh()
-inoremap <expr><C-k> pumvisible() ? "\<C-p>" : "k"
-inoremap <expr><cr> complete_info()["selected"] != "-1" ? "\<C-y>" : "\<C-g>u\<CR>"
+inoremap <expr><c-k> pumvisible() ? "\<C-p>" : "k"
+inoremap <expr><cr> complete_info()["selected"] != "-1" ? "\<c-y>" : "\<c-g>u\<CR>"
 
 " Code action on cursor position