Remove legacy workflow

.github/main.workflow

@@ -1,39 +0,0 @@
-workflow "CI" {
-  on = "push"
-  resolves = ["Format", "Lint", "Test"]
-}
-
-action "Dependencies" {
-  uses = "actions/npm@v2.0.0"
-  args = "ci"
-}
-
-action "Bootstrap" {
-  needs = "Dependencies"
-  uses = "actions/npm@v2.0.0"
-  args = "run bootstrap"
-}
-
-action "Compile" {
-  needs = "Bootstrap"
-  uses = "actions/npm@v2.0.0"
-  args = "run build"
-}
-
-action "Format" {
-  needs = "Dependencies"
-  uses = "actions/npm@v2.0.0"
-  args = "run format-check"
-}
-
-action "Lint" {
-  needs = "Dependencies"
-  uses = "actions/npm@v2.0.0"
-  args = "run lint"
-}
-
-action "Test" {
-  needs = "Compile"
-  uses = "actions/npm@v2.0.0"
-  args = "test"
-}