docs: removes obsolete QA document (#543)

Author: tuliomir

README.md

@@ -20,8 +20,10 @@ If you observe an incorrect behavior while using Hathor headless wallet, see [th
 
 ## Tests
 
+The Hathor headless wallet is tested automatically with unit tests and integration tests. See the following documentation for more information:
 - [Testing guidelines](/docs/testing.md)
-- [QA: suggested test sequence](/docs/QA.md)
+
+Eventually, some changes to plugins or scripts may require specific testing not covered by those automated tests, but those should be analysed case by case on each PR.
 
 ## Contributing
 

docs/QA.md

@@ -16,9 +16,8 @@ Hathor headless wallet documentation is distributed over the following locations
 Documents in this directory:
 
 - [Testing](testing.md)
-- [QA](QA.md)
 - [Feature: multi-signature wallets](multisig-wallets.md)
 - [Feature: atomic swaps](atomic-swaps.md)
 - [Feature: plugins](plugins.md)
 - [Feature: Fireblocks](fireblocks.md)
-- [Feature: HSM](hsm.md)
+- [Feature: HSM](hsm.md)