Stop double insertion of #include in clangd

LSP client
If `completionTextEdit` is set in LSP client (https://github.com/yegappan/lsp),
it applies LSP supplied text changes twice -- once, when completion candidate
is accepted and second time after `CompleteDone` event is fired. This seems
like a LSP client bug.

Solution: Set completionTextEdit to `false` in LSP client config.

#72
#37
M  autoload/vimcomplete/lsp.vim

autoload/vimcomplete/lsp.vim

@@ -15,7 +15,6 @@ export def Setup()
     if exists('*g:LspOptionsSet')
         var lspOpts = {
             useBufferCompletion: false,
-            completionTextEdit: true,  # https://github.com/girishji/vimcomplete/issues/37
             snippetSupport: true, # snippets from lsp server
             vsnipSupport: false,
             autoComplete: false,