depends: libxcb: configure flags cleanup

depends/packages/libxcb.mk

@@ -6,7 +6,7 @@ $(package)_sha256_hash=98d9ab05b636dd088603b64229dd1ab2d2cc02ab807892e107d674f9c
 $(package)_dependencies=xcb_proto libXau
 
 define $(package)_set_vars
-$(package)_config_opts=--disable-static
+$(package)_config_opts=--disable-static --disable-build-docs --without-doxygen --without-launchd
 # Because we pass -qt-xcb to Qt, it will compile in a set of xcb helper libraries and extensions,
 # so we skip building all of the extensions here.
 # More info is available from: https://doc.qt.io/qt-5.9/linux-requirements.html