Remove debugging steps from signed-plugins CI workflow

Remove the OpenSSL version check, pre-seeded build key files, and
redundant ci-keystore ACL restriction that were added during debugging
but are not needed for correct test operation.

Author: brtnfld

.github/workflows/signed-plugins.yml

@@ -84,23 +84,13 @@ jobs:
       run: |
         brew install openssl@3
 
-    - name: Check OpenSSL Version (Windows)
-      if: runner.os == 'Windows'
-      shell: pwsh
-      run: |
-        & openssl version
-
     - name: Generate test RSA key pair (Unix)
       if: runner.os != 'Windows'
       run: |
         openssl genrsa -out ci-test-private.pem 2048
         openssl rsa -in ci-test-private.pem -pubout -out ci-test-public.pem
         mkdir -p ci-keystore
         cp ci-test-public.pem ci-keystore/
-        # Pre-seed build keys so CMake reuses the CI key pair (avoids key mismatch)
-        mkdir -p build
-        cp ci-test-private.pem build/private.pem
-        cp ci-test-public.pem build/public.pem
 
     - name: Generate test RSA key pair (Windows)
       if: runner.os == 'Windows'
@@ -110,10 +100,6 @@ jobs:
         & openssl rsa -in ci-test-private.pem -pubout -out ci-test-public.pem
         New-Item -ItemType Directory -Force -Path ci-keystore
         Copy-Item ci-test-public.pem ci-keystore/
-        # Pre-seed build keys so CMake reuses the CI key pair (avoids key mismatch)
-        New-Item -ItemType Directory -Force -Path build
-        Copy-Item ci-test-private.pem build\private.pem
-        Copy-Item ci-test-public.pem build\public.pem
 
     - name: Configure CMake
       shell: bash
@@ -139,16 +125,14 @@ jobs:
     - name: Build
       run: cmake --build build --parallel 4 --config ${{ matrix.config.build_type }}
 
-    - name: Copy OpenSSL DLLs and secure keystores (Windows)
+    - name: Copy OpenSSL DLLs (Windows)
       if: runner.os == 'Windows'
       shell: pwsh
       run: |
         Copy-Item "C:\Program Files\OpenSSL\bin\libcrypto-3-x64.dll" build\bin\${{ matrix.config.build_type }}\
         Copy-Item "C:\Program Files\OpenSSL\bin\libssl-3-x64.dll" build\bin\${{ matrix.config.build_type }}\
         # Restrict test keystore ACLs so permission check passes
         icacls build\test_keystore /inheritance:r /grant "${env:USERNAME}:(OI)(CI)F" /grant "Administrators:(OI)(CI)F"
-        # Also restrict the compile-time keystore (ci-keystore)
-        icacls ci-keystore /inheritance:r /grant "${env:USERNAME}:(OI)(CI)F" /grant "Administrators:(OI)(CI)F"
 
     - name: Run Tests
       shell: bash