With tooltip-mode disabled, don't unconditionally clear the echo area

* lisp/tooltip.el (tooltip-show-help-non-mode): Only clear the
echo area when the current message displayed is a tooltip message
(Bug#3192).
1 job for master in 90 minutes and 2 seconds (queued for 5 seconds)
Status Job ID Name Coverage
  Test
failed #3311
test-all

01:30:02

 
Name Stage Failure
failed
test-all Test The script exceeded the maximum execution time set for the job
  ELC      org/ob-dot.elc
ELC org/ob-ebnf.elc
ELC org/ob-emacs-lisp.elc
ELC org/ob-eval.elc
ELC org/ob-exp.elc
ELC org/ob-forth.elc
ELC org/ob-fortran.elc
Pulling docker image gitlab/gitlab-runner-helper:x86_64-d0b76032 ...
ERROR: Job failed: execution took longer than 1h30m0s seconds