ide_query: drop prepare-header-only

There is a case that prepare-header-only doesn't work.
Drop prepare-header-only until Siso fixes for such case.

Bug: b/358693473
Change-Id: Ifc256374f6a7e0d29536afeb749e5250e2c5783a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5799222


Auto-Submit: Fumitoshi Ukai <ukai@google.com>
Commit-Queue: Junji Watanabe <jwata@google.com>
Reviewed-by: Junji Watanabe <jwata@google.com>
Cr-Commit-Position: refs/heads/main@{#1343896}