Correctly remove WebView2 references #6046

Job	Run time
build-packages	4m 35s
build-solution (Debug, x64)	6m 45s
build-solution (Debug, arm64)	6m 41s
build-solution (Release, x64)	7m 35s
build-solution (Release, arm64)	7m 38s
verify-packages	6m 19s
run-tests-d3d12ma	4m 29s
run-samples	2m 45s
run-tests	7m 55s
run-samples-aot (x64)	10m 20s
run-tests-win2d	5m 15s
run-samples-aot (arm64)	7m 42s
publish-nightlies-github	23s
publish-nightlies-azure-devops	44s
	1h 19m 6s

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