doc: build: kconfig: preprocessor: remove obsolete entry

The entry listed in the docs does not exist. The correct entry
(dt_compat_enabled) is present.

Fixes #79081

Signed-off-by: Florian Grandel <[email protected]>

Author: fg-cfh

doc/build/kconfig/preprocessor-functions.rst

@@ -45,7 +45,6 @@ while the ``*_hex`` version returns a hexadecimal value starting with ``0x``.
    $(dt_compat_on_bus,<compatible string>,<bus>)
    $(dt_gpio_hogs_enabled)
    $(dt_has_compat,<compatible string>)
-   $(dt_has_compat_enabled,<compatible string>)
    $(dt_node_array_prop_hex,<node path>,<prop>,<index>[,<unit>])
    $(dt_node_array_prop_int,<node path>,<prop>,<index>[,<unit>])
    $(dt_node_bool_prop,<node path>,<prop>)