docs: Remove tmpl directory

We use inline comments now

docs/reference/glib/tmpl/.gitignore

@@ -1,74 +0,0 @@
-allocators.sgml
-arrays_byte.sgml
-arrays_pointer.sgml
-arrays.sgml
-async_queues.sgml
-atomic_operations.sgml
-base64.sgml
-bookmarkfile.sgml
-byte_order.sgml
-caches.sgml
-checksum.sgml
-completion.sgml
-conversions.sgml
-datalist.sgml
-datasets.sgml
-date.sgml
-date-time.sgml
-error_reporting.sgml
-fileutils.sgml
-ghostutils.sgml
-gregex.sgml
-gunix.sgml
-gurifuncs.sgml
-gvariant.sgml
-gvarianttype.sgml
-gwakeup.sgml
-hash_tables.sgml
-hmac.sgml
-hooks.sgml
-iochannels.sgml
-i18n.sgml
-keyfile.sgml
-limits.sgml
-linked_lists_double.sgml
-linked_lists_single.sgml
-macros.sgml
-macros_misc.sgml
-main.sgml
-markup.sgml
-memory_chunks.sgml
-memory_slices.sgml
-memory.sgml
-messages.sgml
-misc_utils.sgml
-modules.sgml
-numerical.sgml
-option.sgml
-patterns.sgml
-quarks.sgml
-queue.sgml
-random_numbers.sgml
-relations.sgml
-scanner.sgml
-sequence.sgml
-shell.sgml
-spawn.sgml
-string_chunks.sgml
-strings.sgml
-string_utils.sgml
-testing.sgml
-thread_pools.sgml
-threads-deprecated.sgml
-threads.sgml
-timers.sgml
-timezone.sgml
-trash_stack.sgml
-trees-binary.sgml
-trees-nary.sgml
-type_conversion.sgml
-types.sgml
-unicode.sgml
-version.sgml
-warnings.sgml
-windows.sgml