setup.cfg: Replace dashes with underscores

Setuptools v54.1.0 introduces a warning that the use of dash-separated
options in 'setup.cfg' will not be supported in a future version [1].
Get ahead of the issue by replacing the dashes with underscores. Without
this, we see 'UserWarning' messages like the following on new enough
versions of setuptools:

  UserWarning: Usage of dash-separated 'description-file' will not be
  supported in future versions. Please use the underscore name
  'description_file' instead

Also remove the unused sections for translation and doc build.

[1] https://github.com/pypa/setuptools/commit/a2e9ae4cb

Change-Id: Ie91f09aaaf3375cbfb3a0e764682e729283be2a5

babel.cfg

@@ -1,2 +0,0 @@
-[python: **.py]
-

setup.cfg

@@ -1,11 +1,11 @@
 [metadata]
 name = python-scciclient
 summary = Python ServerView Common Command Interface (SCCI) Client Library
-description-file =
+description_file =
     README.rst
 author = FUJITSU LIMITED
-author-email = fj-lsoft-scciclient@dl.jp.fujitsu.com
-home-page = https://opendev.org/x/python-scciclient
+author_email = fj-lsoft-scciclient@dl.jp.fujitsu.com
+home_page = https://opendev.org/x/python-scciclient
 classifier =
     Development Status :: 4 - Beta
     Environment :: Console
@@ -20,25 +20,3 @@ classifier =
 [files]
 packages =
     scciclient
-
-[build_sphinx]
-source-dir = doc/source
-build-dir = doc/build
-all_files = 1
-
-[upload_sphinx]
-upload-dir = doc/build/html
-
-[compile_catalog]
-directory = scciclient/locale
-domain = python-scciclient
-
-[update_catalog]
-domain = python-scciclient
-output_dir = scciclient/locale
-input_file = scciclient/locale/python-scciclient.pot
-
-[extract_messages]
-keywords = _ gettext ngettext l_ lazy_gettext
-mapping_file = babel.cfg
-output_file = scciclient/locale/python-scciclient.pot