LSP: remove old commented out blockrtags

Use eglot instead, it's built-in:
https://github.com/joaotavora/eglot#contribute-to-eglots-development

config.org

@@ -1167,41 +1167,6 @@ https://github.com/joaotavora/yasnippet
 
 ** C/C++ mode
 
-*** LSP-mode
-
-Deprecated in favour of rtags
-
-#+BEGIN_SRC emacs-lisp
-;; (use-package lsp-mode
-;;   :commands lsp
-;; )
-
-;; (use-package lsp-ui
-;;   :commands lsp-ui-mode
-;;   :config
-;;     (setq lsp-ui-doc-position (quote top))
-;;     (define-key lsp-ui-mode-map [remap xref-find-definitions] #'lsp-ui-peek-find-definitions)
-;;     (define-key lsp-ui-mode-map [remap xref-find-references] #'lsp-ui-peek-find-references)
-;;     (define-key lsp-ui-mode-map [remap complete-symbol] #'company-complete)
-;; )
-
-;; (use-package company-lsp
-;;   :commands company-lsp
-;;   :config
-;;     (push 'company-lsp company-backends) ;; add company-lsp as a backend
-;; )
-
-;; (use-package ccls
-;;   :config
-;;   (setq ccls-executable "ccls")
-;;   (setq lsp-prefer-flymake nil) ;; Disable flymake for syntax checking, use flycheck instead
-;;   (setq-default flycheck-disabled-checkers '(c/c++-clang c/c++-cppcheck c/c++-gcc))
-;;   :hook ((c-mode c++-mode objc-mode) .
-;;          (lambda () (require 'ccls) (lsp)))
-;; )
-
-#+END_SRC
-
 *** Company
 
 #+BEGIN_SRC emacs-lisp