libobsd: remove

Not working on CI for whatever reason. Not needed anyway.

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

subprojects/libobsd.wrap

@@ -1,11 +0,0 @@
-[wrap-file]
-directory = libobsd-1.1.1
-source_url = https://github.com/guijan/libobsd/releases/download/v1.1.1/libobsd-1.1.1.tar.xz
-source_filename = libobsd-1.1.1.tar.xz
-source_hash = 332b72ba5f9a76c40f8a526771b78dae3ac3388f689f818c0ac4ab77ef52809d
-source_fallback_url = https://github.com/mesonbuild/wrapdb/releases/download/libobsd_1.1.1-1/libobsd-1.1.1.tar.xz
-wrapdb_version = 1.1.1-1
-
-[provide]
-libbsd-overlay = libobsd_dep
-libobsd = libobsd_dep