- Switch to USES=libtool, drop .la files

Approved by:	portmgr blanket


git-svn-id: svn+ssh://svn.freebsd.org/ports/head@366160 35697150-7ecd-e111-bb59-0022644237b5
- Drop USE_AUTOTOOLS=libtool, libtool is not used

Approved by:	portmgr blanket


git-svn-id: svn+ssh://svn.freebsd.org/ports/head@366161 35697150-7ecd-e111-bb59-0022644237b5
- Switch to USES=libtool

Approved by:	portmgr blanket


git-svn-id: svn+ssh://svn.freebsd.org/ports/head@366162 35697150-7ecd-e111-bb59-0022644237b5