Delete dydx-rewards EA (#3874)

Author: dskloetc

.changeset/cool-plants-lay.md

@@ -0,0 +1,5 @@
+---
+'@chainlink/ea-scripts': patch
+---
+
+Remove dydx-rewards external adapter

.github/workflows/checks.yml

@@ -73,7 +73,7 @@ jobs:
       - name: Compile tests
         env:
           CHANGED_PACKAGES: ${{ needs.install-packages.outputs.changed-packages }}
-          FAILING_TESTS_PATTERN: '/composites/dydx-rewards/|/composites/glv-token/|/composites/gm-token/|/core/bootstrap/|/sources/bitgo-reserves-test/|/sources/bitgo-reserves/|/sources/coinpaprika/|/sources/cryptocompare/|/sources/icap/|/sources/ipfs/|/sources/layer2-sequencer-health/|/sources/s3-csv-reader/|/k6/|/observation/'
+          FAILING_TESTS_PATTERN: '/composites/glv-token/|/composites/gm-token/|/core/bootstrap/|/sources/bitgo-reserves-test/|/sources/bitgo-reserves/|/sources/coinpaprika/|/sources/cryptocompare/|/sources/icap/|/sources/ipfs/|/sources/layer2-sequencer-health/|/sources/s3-csv-reader/|/k6/|/observation/'
         run: |
           echo "Tests that should compile:"
           configs_to_compile=($(echo "$CHANGED_PACKAGES" | jq '.[].location + "/tsconfig.test.json"' -r | grep -v -E "$FAILING_TESTS_PATTERN" || true))