Remove old CI runners

.travis.yml

@@ -1,24 +0,0 @@
-language: cpp
-git:
-  depth: false
-
-os:
-  - linux
-  - osx
-
-compiler:
-  - clang
- 
-addons:
-  homebrew:
-    packages:
-    - llvm
-
-script: 
-  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then export PATH="/usr/local/opt/llvm/bin:$PATH" ; fi
-  - make release
-  - ./odin run examples/demo/demo.odin
-  - ./odin check examples/demo/demo.odin -vet
-
-notifications:
-  email: false

appveyor.yml

@@ -1,19 +0,0 @@
-image: 
-  - Visual Studio 2017
-shallow_clone: true
-
-platform: x64
-
-install:
-  - cd bin
-  - appveyor DownloadFile https://github.com/odin-lang/Odin/releases/download/llvm-windows/llvm-binaries.zip
-  - 7z x llvm-binaries.zip > nul
-  - cd ..
-
-build_script: 
-  - call "C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Auxiliary\Build\vcvars64.bat"
-  - ./build_ci.bat
-
-test_script:
-  - odin run examples/demo/demo.odin
-  - odin check examples/demo/demo.odin -vet