Remove custom-icon argument to the create-dmg command, since this arg…

…ument is not even used anymore, and no longer supported

.github/workflows/ci.yml

@@ -59,8 +59,6 @@ jobs:
           path: ${{ env.GOPATH }}/src/github.com/${{ github.repository }}
       - name: install OS dependencies
         run: brew install gtk+3 adwaita-icon-theme hicolor-icon-theme shared-mime-info gtk-mac-integration create-dmg fileicon
-      - name: temp debug
-        run: create-dmg --help
       - uses: actions/setup-go@v2
         with:
           go-version: 1.14

ci/Makefile

@@ -44,7 +44,7 @@ mac-bundle:
 
 release-dmg: clean-mac-bundle mac-bundle
 	mkdir -p ../release
-	create-dmg --volname "CoyIM Installer" --volicon ../build/osx/mac-bundle/coyim.icns --window-pos 200 120 --window-size 800 400 --icon-size 100 --custom-icon "CoyIM.app" ../build/osx/mac-bundle/coyim.icns 200 190 --hide-extension "CoyIM.app" --app-drop-link 600 185 ../release/coyim.dmg ../bin/mac-bundle/CoyIM.app
+	create-dmg --volname "CoyIM Installer" --volicon ../build/osx/mac-bundle/coyim.icns --window-pos 200 120 --window-size 800 400 --icon-size 100 --hide-extension "CoyIM.app" --app-drop-link 600 185 ../release/coyim.dmg ../bin/mac-bundle/CoyIM.app
 	fileicon set ../release/coyim.dmg ../build/osx/mac-bundle/coyim.icns
 	openssl dgst -sha256 ../release/coyim.dmg >> ../release/checksum