stop using the word 'just'

Everywhere. In documentation and code comments.

It is almost never a good word and almost always a filler that should be
avoided.

Closes #20793

docs/examples/cacertinmem.c

@@ -164,7 +164,7 @@ int main(void)
 
     /* second try: retrieve page using cacerts' certificate -> succeeds to
      * load the certificate by installing a function doing the necessary
-     * "modifications" to the SSL CONTEXT just before link init
+     * "modifications" to the SSL CONTEXT before link init
      */
     curl_easy_setopt(curl, CURLOPT_SSL_CTX_FUNCTION, sslctx_function);
     result = curl_easy_perform(curl);