package/webkitgtk: drop unused flag
Upstream dropped in:
https://github.com/WebKit/WebKit/commit/aa6631a6189aaa4541a2d2e89993a4989103d161,
which is present since webkitgtk 2.36.4.
Signed-off-by: Thomas Devoogdt <thomas.devoogdt@barco.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit a0690a8e2474f5ae676ec9602eec56ddc870efad)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Thomas Devoogdt