X87: [runtime] TailCallRuntime and CallRuntime should use default argument counts specified in runtime.h.

  port b889d79d(r33066)

  original commit message:
  In the vast majority of the cases when we call into the runtime we use
  the default number of arguments. Hence, there is not need to specify it
  again. This CL also removes TailCallExternalReference as there were no
  users.

BUG=

Review URL: https://codereview.chromium.org/1559693002

Cr-Commit-Position: refs/heads/master@{#33070}