zygote: drop braces on single item rule

commit 221938cb
introduces a fix that uses braces around a single item.
This is not within the normal style of no brace around
a single item. Drop the braces.

Change-Id: Ibeee1e682c0face97f18d5e5177be13834485676
Signed-off-by: William Roberts <william.c.roberts@intel.com>

public/zygote.te

@@ -58,8 +58,8 @@ allow zygote self:capability sys_admin;
 # Allow zygote to stat the files that it opens. The zygote must
 # be able to inspect them so that it can reopen them on fork
 # if necessary: b/30963384.
-allow zygote pmsg_device:chr_file { getattr };
-allow zygote debugfs_trace_marker:file { getattr };
+allow zygote pmsg_device:chr_file getattr;
+allow zygote debugfs_trace_marker:file getattr;
 
 # Check validity of SELinux context before use.
 selinux_check_context(zygote)