packing gdbserver into apk conflicts with extractNativeLibs="false", as
the gradle pugin compresses it (which could be disabled using
aaptOptions), but furthermore it doesn't page-align it, breaking
installation.
So instead let the user manually push the gdbserver tool to device and
remove the hardcoded values that were only there to please the ndk-gdb
scripts.
Using lldb from within Android Studio is more comfortable anyway :-)

Change-Id: I31c3af4847a479c56b3fcd6b5bed114e004bf0d2
Reviewed-on: https://gerrit.libreoffice.org/41950Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Christian Lohmaier <lohmaier+LibreOffice@googlemail.com>