Libtool made a release after many years. Update to it, allowing us to drop two
backported patches. We also drop a performance optimistion patch since it is
too invasive to maintain separately.
(From OE-Core rev: b5d13cbdded0f71fd4b847066434d30e8a39c9ce)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
