Don't use clangd with YouCompleteMe

UltiSnips/cpp.snippets

@@ -32,7 +32,7 @@ class ${1:name} {
 endsnippet
 
 snippet template "Template"
-template <class ${1:T}$2>$0
+template <${1:class} ${2:T}$3>$0
 endsnippet
 
 snippet namespace "Named or anonymous namespace"

vimrc

@@ -59,6 +59,7 @@ if !platform#is_windows()
   let g:ycm_error_symbol = '▸'
   let g:ycm_warning_symbol = '▸'
   let g:ycm_goto_buffer_command = 'horizontal-split'
+  let g:ycm_use_clangd = 0
 endif
 if has('python')
   " ultisnips - snippet engine