removed empty choices from files

lib/ansible/utils/module_docs_fragments/files.py

@@ -24,25 +24,21 @@ options:
   mode:
     required: false
     default: null
-    choices: []
     description:
       - mode the file or directory should be, such as 0644 as would be fed to I(chmod). As of version 1.8, the mode may be specified as a symbolic mode (for example, C(u+rwx) or C(u=rw,g=r,o=r)).
   owner:
     required: false
     default: null
-    choices: []
     description:
       - name of the user that should own the file/directory, as would be fed to I(chown)
   group:
     required: false
     default: null
-    choices: []
     description:
       - name of the group that should own the file/directory, as would be fed to I(chown)
   seuser:
     required: false
     default: null
-    choices: []
     description:
       - user part of SELinux file context. Will default to system policy, if
         applicable. If set to C(_default), it will use the C(user) portion of the
@@ -50,19 +46,16 @@ options:
   serole:
     required: false
     default: null
-    choices: []
     description:
       - role part of SELinux file context, C(_default) feature works as for I(seuser).
   setype:
     required: false
     default: null
-    choices: []
     description:
       - type part of SELinux file context, C(_default) feature works as for I(seuser).
   selevel:
     required: false
     default: "s0"
-    choices: []
     description:
       - level part of the SELinux file context. This is the MLS/MCS attribute,
         sometimes known as the C(range). C(_default) feature works as for