Emacs: Start lsp-mode even if clangd is not installed.

I use lsp-mode for more things now.

init.d/programming/lsp.el

@@ -11,7 +11,7 @@
 
 ;; Client for Language Server Protocol servers.
 (use-package lsp-mode
-  :if (and (executable-find "clangd") (not slow-computer))
+  :unless slow-computer
   :defines (lsp-clients-clangd-args)
   :diminish lsp-mode
   :custom ((lsp-prefer-flymake nil)     ; Disable flymake.