Revert changes to hello.yml

Signed-off-by: Alex Tzonkov <4975715+attzonko@users.noreply.github.com>

Author: attzonko

.github/workflows/hello.yml

@@ -1,39 +1,11 @@
-name: Validate CDDL and Example
+    name: Hello World Workflow
 
-on:
-  workflow_dispatch:
-  pull_request:
-    paths:
-      - 'Documentation/corim_profile/*.cddl'
-      - 'Documentation/corim_profile/examples/*.diag'
+    on:
+      workflow_dispatch:
 
-jobs:
-  validate:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v3
-
-      - name: Install Ruby cddl and cbor-diag gems
-        run: |
-          sudo apt-get update
-          sudo apt-get install -y ruby
-          sudo gem install cddl
-          sudo gem install cddlc
-          sudo gem install cbor-diag
-
-      - name: Convert DIAG to CBOR
-        run: |
-          diag2cbor.rb Documentation/corim_profile/examples/ocp-safe-sfr-fw-example.diag > example.cbor
-
-      - name: Fetch latest upstream CoRIM CDDL
-        run: |
-          curl -L -o corim-base-upstream.cddl https://github.com/ietf-rats-wg/draft-ietf-rats-corim/releases/latest/download/corim-autogen.cddl
-
-      - name: Concatenate the CDDLs
-        run: |
-          cddlc -t cddl corim-base-upstream.cddl Documentation/corim_profile/ocp-safe-sfr-profile.cddl > combined.cddl
-
-      - name: Validate CBOR against CDDL
-        run: |
-          cddl combined.cddl validate example.cbor
+    jobs:
+      greet:
+        runs-on: ubuntu-latest
+        steps:
+          - name: Say Hello
+            run: echo "Hello, World!"