Bug
1836369 - Only export XRE_GetBootstrap symbol from libxul r=glandium
Better control of the ABI has its own merit, but in that case, we
significantly shrink the amount of dynamic symbol, which in turns
reduces the size of the binary.
As this limits the exported symbol to one, there's no longer a risk to
conflict with libjs, so just remove the symbol versioning.
On linux64 opt build, this saves ~2.5MB on the installer size libxul.so
Differential Revision: https://phabricator.services.mozilla.com/
D179806