Remove references to examples folder in GH workflow and readme

.github/workflows/integration.yml

@@ -50,56 +50,6 @@ jobs:
         working-directory: ./ops
         run: docker-compose run integration_tests
 
-      # Examples Tests
-      # - name: Test & deploy hardhat-example on Ethereum (regression)
-      #  working-directory: ./examples/hardhat
-      #  run: |
-      #    yarn
-      #    yarn deploy
-      #    yarn test:integration
-
-      # - name: Test & deploy hardhat-example on Optimistic Ethereum
-      #  working-directory: ./examples/hardhat
-      #  run: |
-      #    yarn deploy:ovm
-      #    yarn test:integration:ovm
-
-      - name: Test & deploy waffle-example on Ethereum (regression)
-        working-directory: ./examples/waffle
-        run: |
-          yarn
-          yarn compile
-          yarn test:integration
-
-      - name: Test & deploy waffle-example on Optimistic Ethereum
-        working-directory: ./examples/waffle
-        run: |
-          yarn compile:ovm
-          yarn test:integration:ovm
-
-      - name: Test & deploy truffle-example on Ethereum (regression)
-        working-directory: ./examples/truffle
-        run: |
-          yarn
-          yarn compile
-          yarn test:integration
-          yarn deploy
-
-      - name: Test & deploy truffle-example on Optimistic Ethereum
-        working-directory: ./examples/truffle
-        run: |
-          yarn compile:ovm
-          yarn test:integration:ovm
-          yarn deploy:ovm
-
-      # - name: Test l1-l2-deposit-withdrawal example on Optimistic Ethereum with cross-domain message passing
-      #   working-directory: ./examples/l1-l2-deposit-withdrawal
-      #   run: |
-      #     yarn
-      #     yarn compile
-      #     yarn compile:ovm
-      #     yarn test:integration:ovm
-
       - name: Collect docker logs on failure
         if: failure()
         uses: jwalton/gh-docker-logs@v1

CONTRIBUTING.md

@@ -3,12 +3,11 @@
 **Please read our [general contributing guide](https://github.com/ethereum-optimism/.github/blob/master/CONTRIBUTING.md) before continuing**
 
 
-These packages only require 1 reviewer (all other packages require 2 reviewers, unless the changes do not affect production or test code). 
+These packages only require 1 reviewer (all other packages require 2 reviewers, unless the changes do not affect production or test code).
 - packages/smock
 - packages/core-utils
 - packages/hardhat-ovm
 - packages/common-ts
-- examples
-- integration-tests 
+- integration-tests