[vim] adds leader d to destory a buffer

also dropped some shit I no longer use as well as commenting out some
shit I don't even know what it does.

vim/vimrc

@@ -179,6 +179,7 @@ let mapleader = "\<Space>"
 nnoremap <Leader>o :CtrlP<CR>
 nnoremap <Leader>w :w<CR>
 nnoremap <Leader>q :q<CR>
+nnoremap <Leader>d :bd<CR>
 vmap <Leader>y "+y
 vmap <Leader>d "+d
 nmap <Leader>p "+p
@@ -218,13 +219,10 @@ nnoremap <Leader>v :so ~/.vim/vimrc<CR>
 nnoremap <Leader>ss / $<CR>
 nnoremap <Leader>tt /\t$<CR>
 
-nnoremap <leader>d "_d
-vnoremap <leader>d "_d
-vnoremap <leader>p "_dP
-
-" nnoremap <Leader>w :wa<CR>
-" nnoremap <Leader>ww :wa!<CR>
-" nnoremap <Leader>q :qa<CR>
+" TODO: Dunno what these are for
+" nnoremap <leader>d "_d
+" vnoremap <leader>d "_d
+" vnoremap <leader>p "_dP
 
 syntax on
 syntax sync fromstart