Skip VSIX signing

Author: benmcmorran

azure-pipelines.yml

@@ -121,7 +121,13 @@ steps:
       solution: .\build\SignVsix.proj
       msbuildArguments: /p:SignType=$(SignType)
     # MicroBuild signing will always fail on public PRs.
-    condition: ne(variables['Build.Reason'], 'PullRequest')
+    # TODO: Signing the VSIX strips out the "main" executables for
+    # serial-monitor-cli on Mac and Linux, completely breaking serial
+    # functionality in the extension on these platforms. For now we disable VSIX
+    # signing because it's not a strict requirement, but we should investigate
+    # if we can either add extensions to these files or support extensionless
+    # files in VSIX signing.
+    condition: and(false, ne(variables['Build.Reason'], 'PullRequest'))
   - publish: $(Build.StagingDirectory)\vscode-arduino.vsix
     artifact: VS Code extension VSIX
     displayName: Publish extension VSIX as artifact