remove unused workflows

.github/workflows/firebase.yml

@@ -1,23 +0,0 @@
-name: deploy-production
-
-on:
-    push:
-        branches: [main]
-
-jobs:
-    build-and-deploy:
-        runs-on: ubuntu-latest
-        steps:
-            - uses: actions/checkout@v2
-            - uses: actions/setup-node@v3
-              with:
-                  node-version: 20
-            - run: |
-                  npm ci
-                  npm run build
-            - uses: waymondrang/action-hosting-deploy@v1
-              with:
-                  repoToken: "${{ secrets.GITHUB_TOKEN }}"
-                  firebaseServiceAccount: "${{ secrets.FIREBASE_SERVICE_ACCOUNT }}"
-                  projectId: ieeeucsd-org
-                  channelId: live

.github/workflows/preview.yml

@@ -1,20 +0,0 @@
-name: deploy-preview
-
-on: pull_request
-
-jobs:
-    build-and-preview:
-        runs-on: ubuntu-latest
-        steps:
-            - uses: actions/checkout@v2
-            - uses: actions/setup-node@v3
-              with:
-                  node-version: 16
-            - run: |
-                  npm ci
-                  npm run build
-            - uses: waymondrang/action-hosting-deploy@v1
-              with:
-                  repoToken: "${{ secrets.GITHUB_TOKEN }}"
-                  firebaseServiceAccount: "${{ secrets.FIREBASE_SERVICE_ACCOUNT }}"
-                  projectId: ieeeucsd-org

.github/workflows/validate.yml

@@ -1,14 +0,0 @@
-name: validation-testing
-
-on: [push, pull_request]
-
-jobs:
-    validate:
-        runs-on: ubuntu-latest
-        steps:
-            - uses: actions/checkout@v3
-            - uses: actions/setup-node@v3
-            - name: Install Dependencies
-              run: npm ci
-            - name: Run eslint
-              run: npm run lint