Remove travis/appveyor config

Makefile

@@ -32,7 +32,4 @@ win: node_modules
 
 ci: test dist
 
-encryptenv:
-	travis encrypt-file .travis.env --add
-
 .PHONY: dist clean distclean dev test mac win ci encryptenv

docs/OfficialBuilds.md

@@ -1,7 +1,6 @@
 # Official builds
 
-The official builds of this app are generated on [Travis](https://travis-ci.org/irccloud/irccloud-desktop) (macOS, Linux) and
-[AppVeyor](https://ci.appveyor.com/project/russss/irccloud-desktop) (Windows)
+The official builds of this app are generated by Github Actions
 
 ## Code signing
 
@@ -23,26 +22,7 @@ base64 -i cert.p12 -o cert.p12.b64
 On macOS, the .p12 file is exported from Keychain Access. Make sure to expand the
 Developer ID Application cert and select it along with its key before exporting.
 
-Environment variables are encrypted by the [`travis`](https://github.com/travis-ci/travis.rb#readme)
-command line tool, available as a gem.
-
-Install: `gem install travis`
-
-After installing the gem you need to authenticate to Travis with your GitHub
-credentials using `travis login`. You can either enter your password or (e.g. if using 2FA)
-use an [access token](https://help.github.com/articles/creating-an-access-token-for-command-line-use/).
-
-GitHub credentials are only needed the first time you run login, at which point you'll get
-a Travis access token in `~/.travis/config.yml` and you can revoke your GitHub access token after that. More details in the
-[docs](https://github.com/travis-ci/travis.rb#login).
-
-Once you've authenticated with Travis, copy <code>.travis.env<b>.example</b></code> to `.travis.env` and fill
-in the appropriate variables. Then run `make encryptenv` to create the encrypted file
-<code>.travis.env<b>.enc</b></code>. Make sure you don't commit the unencrypted .travis.env
-(it's in [`.gitignore`](../.gitignore))
-
-This file will be decrypted with a key hosted on Travis during a build and the environment
-will be set automatically.
+Environment variables are encrypted repository secrets
 
 ### Windows
 
@@ -75,5 +55,4 @@ The AzureSignTool can be installed with the following command after installing .
 dotnet tool install --global AzureSignTool --version 2.0.17
 ```
 
-Environment variables are encrypted via the [AppVeyor web interface](https://ci.appveyor.com/tools/encrypt)
-and set in [appveyor.yml](../appveyor.yml)
+Environment variables are encrypted repository secrets