Delete github workflows on glsl-dependent branch (#419)

* Delete pr.yml

* Delete glsl.yml
diff --git a/.github/workflows/glsl.yml b/.github/workflows/glsl.yml
deleted file mode 100644
index abec6f6..0000000
--- a/.github/workflows/glsl.yml
+++ /dev/null
@@ -1,47 +0,0 @@
-name: GLSL CI
-
-on:
-  push:
-    branches: [glsl-dependent]
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2.3.1
-        with:
-          persist-credentials: false
-      - uses: actions/setup-node@v2-beta
-        with:
-          node-version: "15.x"
-      - run: npm ci
-      - run: |
-          npm test
-          sed -i '/out\//d' .gitignore
-          sed -i '/out-wpt\//d' .gitignore
-      - run: |
-          cat << EOF >> firebase.json
-          {
-            "hosting": {
-              "public": ".",
-              "ignore": [
-                "firebase.json",
-                "**/.*",
-                "**/node_modules/**"
-              ]
-            }
-          }
-          EOF
-          cat << EOF >> .firebaserc
-          {
-            "projects": {
-              "default": "gpuweb-prs"
-            }
-          }
-          EOF
-      - id: deployment
-        uses: FirebaseExtended/action-hosting-deploy@v0
-        with:
-          firebaseServiceAccount: ${{ secrets.FIREBASE_SERVICE_ACCOUNT }}
-          expires: 30d
-          channelId: live
diff --git a/.github/workflows/pr.yml b/.github/workflows/pr.yml
deleted file mode 100644
index f7a0ff8..0000000
--- a/.github/workflows/pr.yml
+++ /dev/null
@@ -1,66 +0,0 @@
-name: Pull Request CI
-
-on:
-  pull_request_target:
-    branches:
-      - main
-      - glsl-dependent
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2.3.1
-        with:
-          persist-credentials: false
-      - run: |
-          git fetch origin ${{ github.event.pull_request.head.sha }}
-          git checkout ${{ github.event.pull_request.head.sha }}
-      - uses: actions/setup-node@v2-beta
-        with:
-          node-version: "15.x"
-      - run: npm ci
-      - run: |
-          npm test
-          sed -i '/out\//d' .gitignore
-          sed -i '/out-wpt\//d' .gitignore
-      - run: |
-          cat << EOF >> firebase.json
-          {
-            "hosting": {
-              "public": ".",
-              "ignore": [
-                "firebase.json",
-                "**/.*",
-                "**/node_modules/**"
-              ]
-            }
-          }
-          EOF
-          cat << EOF >> .firebaserc
-          {
-            "projects": {
-              "default": "gpuweb-prs"
-            }
-          }
-          EOF
-      - id: deployment
-        continue-on-error: true
-        uses: FirebaseExtended/action-hosting-deploy@v0
-        with:
-          firebaseServiceAccount: ${{ secrets.FIREBASE_SERVICE_ACCOUNT }}
-          expires: 30d
-          channelId: cts-prs-${{ github.event.pull_request.number }}-${{ github.event.pull_request.head.sha }}
-      - uses: peter-evans/create-or-update-comment@v1
-        continue-on-error: true
-        if: ${{ steps.deployment.outcome == 'success' }}
-        with:
-          issue-number: ${{ github.event.pull_request.number }}
-          body: |
-            Previews, as seen at the time of posting this comment:
-            [**Run this PR's tests live**](${{ steps.deployment.outputs.details_url }}/standalone/)
-            <sub>${{ github.event.pull_request.head.sha }}</sub>
-            <!--
-            pr;label;sha
-            ${{ github.event.pull_request.number }};${{ github.event.pull_request.head.label }};${{ github.event.pull_request.head.sha }}
-            -->