Remove obsolete API key stuff

Author: AArnott

.github/workflows/release.yml

@@ -25,11 +25,6 @@ jobs:
     - name: ⚙️ Initialization
       shell: pwsh
       run: |
-        if ('${{ secrets.NUGET_API_KEY }}') {
-          Write-Host "NUGET_API_KEY secret detected. NuGet packages will be pushed."
-          echo "NUGET_API_KEY_DEFINED=true" >> $env:GITHUB_ENV
-        }
-
         if ('${{ secrets.NPM_API_KEY }}') {
           Write-Host "NPM_API_KEY secret detected. NPM packages will be pushed."
           echo "NPM_API_KEY_DEFINED=true" >> $env:GITHUB_ENV
@@ -115,16 +110,14 @@ jobs:
           gh release -R ${{ github.repository }} upload "${{ github.ref_name }}" $_.FullName
         }
 
-    - name: 🚀 NuGet login for push
+    - name: 🪪 Authorize NuGet package push
       uses: NuGet/login@v1
       id: nuget-login
       with:
         user: ${{ secrets.NUGET_USER }}
-      if: ${{ env.NUGET_API_KEY_DEFINED == 'true' }}
 
     - name: 🚀 Push NuGet packages
       run: dotnet nuget push ${{ runner.temp }}\deployables\*.nupkg --source https://api.nuget.org/v3/index.json -k '${{ steps.nuget-login.outputs.NUGET_API_KEY }}'
-      if: ${{ env.NUGET_API_KEY_DEFINED == 'true' }}
 
     - name: 🚀 Push NPM packages
       shell: pwsh