Factor out and simplify COM-safe wait HEADmaster

Before commit 1e2e51607a163021ef1fb1fb0d217266bd448173 (Try to use
CoWaitForMultipleHandles magic to handle COM message loop, 2025-01-10)
osl_waitCondition didn't adjust the timeout value in the COM message
processing loop. The abovementioned commit started to use a function
that pumps the message loop itself, but the code for manual pumping
wasn't removed (it has (likely) became dead).

This drops the dead code, and deduplicates the rest.

Change-Id: I0f7bbf8220792fbe42178c2689a065b5f38645d6
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/180069
Tested-by: Jenkins
Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>

0 files changed, 0 insertions, 0 deletions