Remove DEBUG_ACTIONS variable.

If needed it can be set in github if needed.

.github/workflows/selfhosted.yml

@@ -11,7 +11,6 @@ jobs:
     runs-on: ${{ matrix.host }}
     timeout-minutes: 600
     env:
-      DEBUG_ACTIONS: false
       HOST: ${{ matrix.host }}
       TARGET_HOST: ${{ matrix.target }}
       TARGET_CONFIG: ${{ matrix.config }}

.github/workflows/upstream.yml

@@ -11,7 +11,6 @@ jobs:
     if: github.repository == 'openssh/openssh-portable-selfhosted'
     runs-on: ${{ matrix.host }}
     env:
-      DEBUG_ACTIONS: true
       EPHEMERAL: true
       HOST:  ${{ matrix.host }}
       TARGET_HOST: ${{ matrix.target }}