Is Executable_libtest still useful?

[Stephan Bergmann]

desktop/Executable_libtest.mk, first introduced with 
<https://git.libreoffice.org/core/+/8887de72c184bec6225a952ec90433ae1b7a5b26%5E!/> 
"liblibo: create initial liblibreoffice", appears to be some debugging 
aid related to LibreOfficeKit.  However, at least with various recent 
master builds of mine on Linux,

> workdir/LinkTarget/Executable/libtest ~/lo/core/instdir/program ~/Documents/test.odt

(with some random test.odt) always fails with

> workdir/LinkTarget/Executable/libtest: symbol lookup error: ~/lo/core/instdir/program/../program/libswlo.so: undefined symbol: _ZN17SvxCharRotateItemC1Etbt

so I wonder whether that program is actually still maintained and used 
by anybody.  (At least the last dozen or so changes to 
smoketest/libtest.cxx were of the generic loplugin/typos/tools::Long 
etc. kind, and we could spare ourselves future such work if we removed 
the file should it indeed be dead code.)