various improvements

Contributing-(TODO-List).md

@@ -15,11 +15,6 @@
 * [Clean header include](https://github.com/include-what-you-use/include-what-you-use). Investigate.
 * Address sanitizer (GCC or Clang) and other sanitizers.
 * Valgrind (not sure it can run PCSX2, maybe limit the scope to plugins)
-* Reformat the core/plugin to a constant style with clang-format (on-going by greg)
-
-## GUI
-
-* Check Linux chapter. Various improvements are actually cross-platform! ;)
 
 ## Linux
 
@@ -29,25 +24,5 @@ You're welcome to the [Linux contribution thread](https://forums.pcsx2.net/Threa
 
 * Clean up warnings
   1. Same as GCC flags but without the need of complete test.
-* Clean up GCC flags
-  1. Put default global flags in cmake/BuildParameters.cmake
-* Speed comparison Clang/GCC
 * Add missing/update copyright headers
-* LTO support
 * PGO support
-* clang-tidy (./build.sh --clang-tidy)
-
-### Core
-
-* Support XZ compressed ISOs
-
-### GSdx
-
-* Implement DirectX features on OpenGL (and vice versa, if applicable)(video recording, etc.) 
-* Gameplay recording (so far, framebuffer is dumped every frame)
-
-## Very long term features
-
-Those features will require a lot of work, and an organized long-term effort.
-* Android X86 port
-* Linux ARM port