Remove upstreamed patch.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

The crude loop I wrote to come up with this changeset:

  find -L package/feeds/packages/ -name patches | \
  sed 's/patches$/refresh/' | sort | xargs make

Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>

In reaction to a comment by @hnyman in
https://github.com/openwrt/packages/pull/11768#issuecomment-610513948
on BOINC embracing too many libraries it finds on its build
host, the inclusion of the freetype library is now excluded
by an embracing "if" statement.

The patch is presented to BOINC upstream at
https://github.com/BOINC/boinc/pull/3578

Signed-off-by: Steffen Möller <moeller@debian.org>