Remove tab bind

vim/.vimrc

@@ -88,27 +88,6 @@ vnoremap y "+y
 vnoremap x "+x
 vnoremap c "+c
 
-"Built-in completion
-function! Smart_TabComplete()
-  let line = getline('.')						  " current line
-  let substr = strpart(line, -1, col('.')+1)	  " from the start of the current
-												 " of the cursor
-  let substr = matchstr(substr, "[^ \t]*$")		  " word till cursor
-  if (strlen(substr)==0)						  " nothing to match on empty string
-	return "\<tab>"
-  endif
-  let has_period = match(substr, '\.') != -1	  " position of period, if any
-  let has_slash = match(substr, '\/') != -1		  " position of slash, if any
-  if (!has_period && !has_slash)
-	return "\<C-X>\<C-P>"						  " existing text matching
-  elseif ( has_slash )
-	return "\<C-X>\<C-F>"						  " file matching
-  else
-	return "\<C-X>\<C-O>"						  " plugin matching
-  endif
-endfunction
-inoremap <tab> <c-r>=Smart_TabComplete()<CR>
-
 " Plugins
 
 " Nerdtree