Removing invalid-name from disabled pylint checks.

It has been introduced in https://webrtc-review.googlesource.com/c/src/+/1566 but now it seems we can remove it since it is not raising any failure.

NOTRY=True

Bug: None
Change-Id: Id82b1b7fba6b5277753eabbf9fb7a722819532f9
Reviewed-on: https://webrtc-review.googlesource.com/8302
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Henrik Kjellander <kjellander@google.com>
Reviewed-by: Henrik Kjellander <kjellander@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#20235}
diff --git a/pylintrc b/pylintrc
index 083a79f..6d40f78 100644
--- a/pylintrc
+++ b/pylintrc
@@ -27,7 +27,6 @@
   exec-used,
   fixme,
   import-error,
-  invalid-name,
   missing-docstring,
   no-init,
   no-member,