Drop azure mention (#7373)

(cherry picked from commit 66e261a)

Author: Dreamsorcerer

docs/index.rst

@@ -140,9 +140,6 @@ Please feel free to file an issue on the `bug tracker
 <https://github.com/aio-libs/aiohttp/issues>`_ if you have found a bug
 or have some suggestion in order to improve the library.
 
-The library uses `Azure Pipelines <https://dev.azure.com/aio-libs/aiohttp/_build>`_ for
-Continuous Integration.
-
 
 Dependencies
 ============