Remove override sorter.

Firstly, this `sorter_word` behaviour is not the optimal choice.
Secondly, user could customize the behaviour easily with `deoplete#custom#source`.

Ref #408.

Author: Junfeng Li

rplugin/python3/deoplete/sources/LanguageClientSource.py

@@ -12,7 +12,6 @@ def __init__(self, vim):
         self.name = "LanguageClient"
         self.mark = "[LC]"
         self.rank = 1000
-        self.sorters = ["sorter_word"]
         self.min_pattern_length = 1
         self.filetypes = vim.eval(
             "get(g:, 'LanguageClient_serverCommands', {})").keys()