Revert logic for checking for duplicate installations of DevTools (#22638)

* Revert "Only show DevTools warning about unrecognized build in Chrome (#22571)"

This reverts commit b72dc8e9300f5ae997f7f5cfcd79b604cca3df0c.

* Revert "Show warning in UI when duplicate installations of DevTools extension are detected (#22563)"

This reverts commit 930c9e7eeb4c9721e1b8dee074c2eef4d1eae5dc.

* Revert "Prevent errors/crashing when multiple installs of DevTools are present (#22517)"

This reverts commit 545d4c2de7934a43b0c5d3ce050d77b4c3113bd3.

* Remove all references to passing extensionId in postMessage

* Keep build changes

* lint