Drop patches from 2016.4, applied upstream

debian/patches/series

@@ -1,12 +0,0 @@
-test-xattrs-use-TAP-syntax-to-skip-test.patch
-various-tests-skip-if-temp-directory-lacks-xattr-support.patch
-Symlink-libreaddir-rand.so-into-tests-directory.patch
-tap-test-clean-up-temporary-test-directories-as-intended.patch
-In-tests-that-use-gpg-terminate-the-gpg-agent-after-testi.patch
-Load-g-i-bindings-from-builddir-during-build-time-testing.patch
-tests-admin-test.sh-this-is-a-bash-script-not-a-POSIX-sh-.patch
-Skip-tests-that-run-rofiles-fuse-if-dev-fuse-or-etc-mtab-.patch
-Probe-for-GNU-parallel-more-accurately.patch
-libtest.sh-use-G_TEST_SRCDIR-G_TEST_BUILDDIR-to-find-reso.patch
-test-xattrs-sync-how-this-is-skipped-with-test-rofiles-fu.patch
-libtest.sh-only-check-whether-pwd-is-empty-once.patch