Remove ‘autocreate’ FS option

Systemd creates missing mountpoints unconditionally.

modules/tasks/filesystems.nix

@@ -64,9 +64,6 @@ in
         specify a volume label (<literal>label</literal>) for file
         systems that support it, such as ext2/ext3 (see <command>mke2fs
         -L</command>).
-
-        <literal>autocreate</literal> forces <literal>mountPoint</literal> to be created with
-        <command>mkdir -p</command> .
       '';
 
       type = types.list types.optionSet;
@@ -108,15 +105,6 @@ in
           description = "Options used to mount the file system.";
         };
 
-        autocreate = mkOption {
-          default = false;
-          type = types.bool;
-          description = ''
-            Automatically create the mount point defined in
-            <option>fileSystems.*.mountPoint</option>.
-          '';
-        };
-
         autoFormat = mkOption {
           default = false;
           type = types.bool;
@@ -219,12 +207,6 @@ in
               fi
             '')}
 
-            # Create missing mount points.  Note that this won't work
-            # if the mount point is under another mount point.
-            ${flip concatMapStrings config.fileSystems (fs: optionalString fs.autocreate ''
-              mkdir -p -m 0755 '${fs.mountPoint}'
-            '')}
-
             # Create missing swapfiles.
             # FIXME: support changing the size of existing swapfiles.
             ${flip concatMapStrings config.swapDevices (sw: optionalString (sw.size != null) ''