Linux: remove unmaintained SELinux code.

sandbox/linux/selinux/chromium-browser.te

-policy_module(chromium-browser,1.0.0)
-
-gen_require(`
-  type gnome_home_t;
-  type proc_t;
-  type tmpfs_t;
-  type unconfined_t;
-  type urandom_device_t;
-  type user_devpts_t;
-  type user_tmpfs_t;
-')
-
-type chromium_renderer_t;
-domain_base_type(chromium_renderer_t)
-role unconfined_r types chromium_renderer_t;
-
-allow unconfined_t chromium_renderer_t:process { dyntransition };
-
-allow chromium_renderer_t unconfined_t:unix_stream_socket { read write send_msg recv_msg };
-allow unconfined_t chromium_renderer_t:unix_stream_socket { read write send_msg recv_msg };
-
-allow chromium_renderer_t urandom_device_t:chr_file { read };
-allow chromium_renderer_t user_devpts_t:chr_file { write };
-allow chromium_renderer_t self:process { execmem };
-allow chromium_renderer_t self:fifo_file { read write };
-allow chromium_renderer_t self:unix_dgram_socket { read write create send_msg recv_msg sendto };
-allow chromium_renderer_t unconfined_t:unix_dgram_socket { read write send_msg recv_msg };
-allow unconfined_t chromium_renderer_t:unix_dgram_socket { read write send_msg recv_msg };
-allow chromium_renderer_t user_tmpfs_t:file { read write append open getattr };
-allow chromium_renderer_t tmpfs_t:file { read write };
-allow chromium_renderer_t self:shm { create destroy getattr setattr read write associate unix_read unix_write };
-
-# For reading dictionaries out of the user-data-dir
-allow chromium_renderer_t gnome_home_t:file { read getattr };
-
-miscfiles_read_localization(chromium_renderer_t);
-miscfiles_read_fonts(chromium_renderer_t);
-
-# The renderer will attempt to read meminfo
-dontaudit chromium_renderer_t proc_t:file { read };