gptel: Remove references to gptel--debug (fix karthink#205)

* gptel.el (gptel--url-parse-response): Remove reference to
`gptel--debug`.

* gptel-curl.el (gptel-curl--sentinel): Remove reference to
`gptel--debug`.

gptel-curl.el

@@ -346,9 +346,6 @@ See `gptel-curl--get-response' for its contents.")
 
 PROCESS and _STATUS are process parameters."
   (let ((proc-buf (process-buffer process)))
-    (when gptel--debug
-      (with-current-buffer proc-buf
-        (clone-buffer "*gptel-error*" 'show)))
     (when-let* (((eq (process-status process) 'exit))
                 (proc-info (alist-get process gptel-curl--process-alist))
                 (proc-callback (plist-get proc-info :callback)))

gptel.el

@@ -1134,9 +1134,6 @@ See `gptel-curl--get-response' for its contents.")
 (defun gptel--url-parse-response (backend response-buffer)
   "Parse response from BACKEND in RESPONSE-BUFFER."
   (when (buffer-live-p response-buffer)
-    (when gptel--debug
-      (with-current-buffer response-buffer
-        (clone-buffer "*gptel-error*" 'show)))
     (with-current-buffer response-buffer
       (when gptel-log-level             ;logging
         (save-excursion