Revert "Don't build classic"

This reverts commit 8d6fbe7941.

azure-pipelines.yml

@@ -165,9 +165,9 @@ stages:
               displayName: set up the msbuild envvar
               errorActionPreference: stop
 
-            # - pwsh: |
-            #     & $env:MSBUILD_EXE /r /m ./build/Build.Microsoft.Maui.Graphics.Windows.sln /p:Configuration=${{ BuildConfiguration.name }} /bl:$(Build.ArtifactStagingDirectory)/${{ BuildConfiguration.name }}.binlog
-            #   displayName: build classic solutions~
+            - pwsh: |
+                & $env:MSBUILD_EXE /r /m ./build/Build.Microsoft.Maui.Graphics.Windows.sln /p:Configuration=${{ BuildConfiguration.name }} /bl:$(Build.ArtifactStagingDirectory)/${{ BuildConfiguration.name }}.binlog
+              displayName: build classic solutions~
 
             - pwsh: |
                 & $env:MSBUILD_EXE /r /m ./Microsoft.Maui.Graphics-net6.sln /p:Configuration=${{ BuildConfiguration.name }} /bl:$(Build.ArtifactStagingDirectory)/${{ BuildConfiguration.name }}-net6.binlog